# Questions Asked onApril 19, 2011

Calculate the lattice energy of potassium oxide from the following data: Enthalpy of sublimation of potassium: +89.24 kJ/mol Bond energy of oxygen: +498 kJ/mol First ionization energy of potassium: +419 kJ/mol 1st electron affinity of oxygen: -141 kJ/mol

2. ## physics

A teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 12 in 9.0 . Assume the merry-go-round is a uniform disk of radius 2.2 and has a mass of 650 , and two children (each with a mass

3. ## Math

In a rack of 15 billiard balls and one ball is selected at random what are the odds in favor it being a ball other than the 8 ball. I thought it would be 1/15 but I am not sure. Anyone help me on this?

4. ## Geometry

A 10 ft. ladder is leaning against a building and makes an angle of 65 degrees with the ground. How high above the ground is the top of the ladder?

5. ## physics

A storage tank at stp contains 18.5kg of nitrogen. What is the volume of the tank and what would the pressure be if you added another 15kg of nitrogen at the same temperature?

6. ## calculus

For trigonometric substitution to solve the above integral, fill in the blanks below using the picture of the triangle given. integral (x^3)/(sqrt(25+9x^2)) dx / l / l / l / l / l / l / l / l / l side A / l / l --------- side B *** sorry hard to draw on

7. ## physics

A grinding wheel 0.28 m in diameter rotates at 2400 rpm. What is the acceleration of a point on the edge of the grinding wheel?

8. ## chemistry

Introduced into a 1.50L container is 0.100mol PCl5(g). The flask is held at 227degreesC until equilibrium is established. What are the partial pressures and the total pressures of the gases in the flask at the equilibrium. PCl5(g)PCl3(g)+Cl2(g) I got a

9. ## trigonometry

simplify sin7x-sin3x as a product of trig functions.

A cone has a slant height of 10 centimeters and lateral area of 60pi square centimeters. What is the volume of the sphere with a radius equal to that of a cone? -we tried solving and got 4.37 or so for the radius and we couldn't get any further than that

11. ## physics

The weight of an object on the moon is one-sixth of its weight on the Earth. The ratio of the kinetic energy of a body on the Earth moving with speed V to that of the same body moving with speed V on the moon is:

12. ## Organic Chemistry

What advantages does H NMR have over melting point in the determination of purity?

13. ## physics

In the Sun, an ionized helium atom makes a transition from n =6 state to the n = 2 state, emitting a photon. Can that photon be absorbed by hydrogen atoms present in the Sun? If so between what energy states will the hydrogen atom jump?

14. ## Chem

Consider the exothermic reaction CoCl42-(aq) + 6 H2O(l) --> Co(H2O)62+(aq) + 4 Cl -(aq). Will the equilibrium concentration of CoCl42- increase or decrease when the following changes occur? (a) HCl is added. increases decreases .(b) Co(NO3)2 is added.

15. ## algerba 1

If a and b are any real numbers such that 0

16. ## earth

Deep within the earth, the process of mantle ___ drives plate tectonics. A) Condensation B) Subduction C) Currents D) Convection

17. ## PHYSICS

Sally Sue, an enthusiastic physics student enjoyed the opportunity to collect data from standing waves in a spring. She and her partner help the ends of their spring 4.00 meters apart. There are 5 nodes in the standing wave produced. Sally moved her hand

18. ## Physics

A cylinder of oxygen has a gauge pressure of 2000psi and a volume of 16L at 70 degrees F. If the oxygen is used as a constant flow rate of 2 L/minute, measured at 1 atm of pressure, how long will the tank last? Hint: Calculate the mass (grams) of oxygen in

19. ## physics

The bolts on the cylinder head of an engine require tightening to a torque of 63 . If the six-sided bolt head is 15 in diameter, estimate the force applied near each of the six points by a socket wrench.

20. ## math

how do i use two unit multipliers to convert 61.131121 kilometers to centimeters

21. ## Check my answers? (Chemistry)

I only get one chance for each of these questions so I was wondering if someone could check my answers, thanks! 1. Consider the following reaction at equilibrium. 2 BrNO(g) ---> 2 NO(g) + Br2(g) Predict the effect of the following changes to the reaction

22. ## Calculus

Consider the curve y^2+xy+x^2=15. What is dy/dx? Find the two points on the curve where y equals 0 and show that the tangent lines there are parallel. Find the coordinates of all points on the curve where there is a horizontal tangent line, with work.

23. ## physics

A centrifuge accelerates uniformly from rest to 18000 rpm in 180 s. Through how many revolutions did it turn in this time?

24. ## trig

convert the point with polar coordinates (2,7pi/6) into rectangular coordinates.

25. ## CHEMISTRY

4BF3+3H2O=H3BO3+3HBF4 if the reaction vessel contains 0.496 mol BF3 and 5.63g of H2O, which compound is the limiting reactant? how many molesof HBF4 can be produced?

26. ## chemistry

Introduced into a 1.50L container is 0.100mol PCl5(g). The flask is held at 227degreesC until equilibrium is established. What are the partial pressures and the total pressures of the gases in the flask at the equilibrium. PCl5(g)PCl3(g)+Cl2(g)

27. ## physics

A small rubber wheel is used to drive a large pottery wheel, and they are mounted so that their circular edges touch. The small wheel has a radius of 1.8 and accelerates at the rate of 7.0 , and it is in contact with the pottery wheel (radius 30.0 )

28. ## Chemistry

Oxygen gas and water are produced by the decomposition of hydrogen peroxide. If 10.0 mol of H2O2 decomposes, what volume of oxygen will be produced? Assume the density of oxygen is 1.429g/L. 2H2O2= 2H2O+O2

29. ## Integrated Physics and Chemistry

Matching... Heat engine Heat pump Boiler Thermostat -a heating appliance that uses heat energy released from fossil fuels to warm water for use in radiant or convection heating systems -a appliacne that controls the maintenance temperature of a heating

30. ## Integrated Physics and Chemistry

The internal energy of a material is determined by.. A)its temperature B)the kinetic energy of its molecules C)the potential energy of its molecules D)the combined amount of kinetic and potential energy of its molecules

31. ## Math

Solve for x log 1000=x

32. ## math

a vector has a magnitude of 18.3 cm and a direction of 38 degrees. find the magnitude of its vertical and horizontal components to the nearest tenth.

33. ## Math

You have 16 coins that are heads up and 18 coins that are tails up. After you add some coins that are tails up, the ratio of heads up to tails up is 1 to 1.5. How many coins are tails up? How many coins in all?

34. ## CHEMISTRY

CALCULATE THE MASS OF Na3PO3 PRODUCED AFTER 28.0g OF H3PO3 IS TREATED WITH 42.0g OF NaOH, AND ALSO CALCULATE THE MASS REMAINING OF THE EXCESS REAGENT. H3PO3+ 3NaOH = Na3PO3+ 3H2O

35. ## ms sue

ms sue i did and went back to the other posts. could you please help me now. And also i need a bit help on this bit. the workers who have been trying to bring the nuclear crisis under control volunteered 4 the job. what factors might they have weighed when

36. ## Math

You have 16 coins that are heads up and 18 coins that are tails up. After you add some coins that are tails up, the ratio of heads up to tails up is 1 to 1.5. How many coins are tails up? How many coins in all?

37. ## Social Studies

Was Blitzkrieg a successfull war stratagy?

38. ## Chemistry

Which of the following statements are true? Fusion reactions result in nuclei with higher Z. To keep a nuclear power plant going, a chain reaction must be maintained. Nuclear fusion produces no long-lived radioactive by-products. The Sun is a nuclear

39. ## A level english literature

I need to write an essay comparing estrangement and alienation in cat on a hot tin roof and awakening, I sort of know what to write but I'm struggling to get a good opening to my essay. Help!

40. ## physics

If Fx = Fy then the angle è which the vector F makes with the horizontal is of 0⁰ 45⁰ 90⁰ 180⁰

41. ## chemistry

A reaction is run in which dissolved silver ions are reduced in the presence of solid copper. THis reaction can be used to produce a silver coating on a copper wire frame. .249g of copper wire was placed in a 100 mL of a 0.500 M solution of silver nitrate.

42. ## Stoichiometry

If 0.500 g of sulfur dioxide from pollutants reacts with excess water and oxygen found in the air, what mass of sulfuric acid can be produced? 2H2O(l)+O2(g)+2SO2(g)= 2H2SO4(aq)

43. ## Stoichiometry

If 0.500 g of sulfur dioxide from pollutants reacts with excess water and oxygen found in the air, what mass of sulfuric acid can be produced? 2H2O(l)+O2(g)+2SO2(g)= 2H2SO4(aq)

44. ## PRECALCULUS

write the complex number in standard form a+bi sqrt 7 (cos pi/12 + i sin pi/12) (sqrt = square root, i= imaginary number)

45. ## math

how do you figure out the problem to what is the area of the following square where one side is 21in A= s2nd power

46. ## statistics

Use the data given to test the following hupotheses. Assume the data are normally distributed in the population. Ho: M=7.48 Ha:m>7.48 xbar = 6.91, n=24, sigma=1.21,alpha=.01

47. ## Ratios

You have 45 coins. Five out of every 9 are heads and the rest are tails. How many coins are heads?

48. ## algebra

You have 16 coins that are heads up and 18 coins that are tails up. After you add some coins that are tails up, the ratio of heads up to tails up is 1 to 1.5. How many coins are tails up? How many coins in all?

50. ## chemistry

ASSUME THE FORMULA OF GASOLINE AS C8H18 AND ITS DENSITY IS 0.71g/ml. IF A CAR GETS 26.2mi/gal (1GAL=3.785L), WHAT IS THE MASSOF CO2 PRODUCED IN A TRIP OF 225mi.? ASSUME COMPLETE COMBUSTION OF GASOLINE. C8H18+25/2 O2= 8CO2+ 9H2O

51. ## Nuclear Crisis Help

the workers who have been trying to bring the nuclear crisis under control volunteered 4 the job. what factors might they have weighed when deciding whether or not to stay behind and help. What qualities do you think these people must possess? Why do you

52. ## chemistry

how many grams of hydrogen peroxide (H2O2) must be added to 1500 ml of water to produce a concentration of 1.33 m (molal solution)

53. ## HCA/230

Hello, I am confused on my assignment I have to do. It states to make a list on perspectives of caregivers. Can you explain this better for me? Is this what they do? Anything info will help me on this one. Thanks,

54. ## trig

simplify the expression: sin(theta+pi/4) + sin(theta-pi/4)

55. ## Algebra

Perform the indicated operations of 5/8-(2-7)

56. ## accounting

If you decide to buy a car for \$17,500 and get \$2,500 on a trade-in. If the bank finances the remainder at 7.8%, and you want to pay off the loan in 5 years, how much will your monthly payments be? (Assume that interest is compounded monthly.)

5-(2 3/5-1)

58. ## Probability

At an ice cream ship, customers can order a sundae with 1 type of ice cream, 1 type of sauce, and 1 type topping. The types of ice cream are: chocolate; strawberry; vanilla The types of sauce are: caramel, strawberry, chocolate, butterscotch The types of

59. ## calculus

I posted this below, and no one answered. Please help with this very complicated question! Using 3(x-3)(x^2-6x+23)^1/2, as the chain rule differentiation of f(x)=(x^2-6x+23). Please explain how I find the general solution to the differential equation

60. ## MATH

quantity price 50 \$1.25 100 \$2.25 200 \$4.20 300 \$11.25 Which quantity has the best unit price? PLease explain so i could understand thanks for the help AND THE dimensions of rectangular parking lot are 330ft by 480ft What is the area of the parking lot in

61. ## trig

sin^-1(sin5pi/6)

62. ## Math

The two sides of a isosceles triangle have a fixed lenght of 14 cm. The opposite angle at the base of the triangle increases by 0.3 rad/min. a) what is the growth rate dx/dt of the base of the triangle when the opposite angle mesures 1.6 rad? (Use the law

63. ## english

1. An analogy helps clarify a complex idea by: A. presenting several definitions of the idea. B. comparing the idea with a simpler one C. breaking down the idea into smaller pieces D. pointing our a single common trait between two topics. I think it's B?

64. ## accounting

MKTG205-1101B-07 Principles of Marketing Assignment Name: Unit 5 Individual Project Deliverable Length: 2-3 pages Details: Select a global company of your choice in the service industry. Using your selected global company as the subject matter, research

65. ## Science

How does the temperature of water affect the speed of the water molecules?

66. ## chemistry

given C12H22O11+H2O----C6H12O6+C6H12O6 heat combustion0f 5646.7kj/mol what is the standard enthalpy

67. ## Maths

a) A young man measuring 1.89 m. walks at a velocity of 1m/s towards a lamppost which its light is at 4m from the ground. At what velocity does the young man's shadow decrease when he's 10 m away from the lamppost? b) A young girl, standing at the edge of

68. ## English

Which of the following should NOT be capitalized? A. Europe B. the Earth C. Far East D. the South Atlantic I think it's B?

69. ## chemistry (need some help)

In a series of decays (hypothetical), the nuclide Ra-227 beomes Pb-203. How many alphas and how many betas are emitted in this series? Give two answers: first, give the number of alpha decays; then, the number of beta decays. I know that there are 6 alpha

70. ## science

when a car suddenly stops at a red light a book lying on the car seat slides forward why does the book continue to move forward?

71. ## English

What is the the meaning of APA

72. ## English

Hello. Will you please tell me if the following word order is possible in English: "She sometimes (?) doesn't go to work" or is it "Sometimes she doesn't go to work"? Thank you for help.

73. ## Math

We pour water into a conical container of a radius of 10 cm with a height of 36cm at a rate of 70 cm^3/s. At what velocity does the water level increase when it reaches 12 cm? dh/dt=?

74. ## chem

Introduced into a 1.50L container is 0.100mol PCl5(g). The flask is held at 227degreesC until equilibrium is established. What are the partial pressures and the total pressures of the gases in the flask at the equilibrium. PCl5(g)PCl3(g)+Cl2(g) Can you

75. ## English

What is the relationship between critical thinking and academic integrity?

76. ## American lIt project

Do you guys know of any songs or poems that have to do with America in the 1950s? Thanks

77. ## Math

Sam has 9 models. Bill has twice as many models as Jim. Jim has three less models than Sam. Show how to find the difference between the number of models Bill has and the number of models Sam has.

78. ## algebra 1

The area of trapezoid is h( b1+b2)/5, where h is the altitude, and b1 and b2 are the lenghts of the parallel bases. If trapezoid has an altitude of 5 inches, an area of 55 square inches , and one base 12 inches long, what is the lenghth, in inches, of its

79. ## chemistry (NEED HELP)

In a series of decays (hypothetical), the nuclide Ra-227 beomes Pb-203. How many alphas and how many betas are emitted in this series? Give two answers: first, give the number of alpha decays; then, the number of beta decays. I know that there are 6 alpha

80. ## math

If a and b are any real numbers such that 0

81. ## chemistry

given C12H22O11+H2O----C6H12O6+C6H12O6 heat combustion0f 2826.7kj/mol what is the standard enthalpy

82. ## math

In triangle ABC ,if

83. ## chemistry

given C12H22O11+H2O----C6H12O6+C6H12O6 heat combustion 0f 2815.8 kj/mol what is the standard enthalpy

84. ## algebra 1

If a and b are any real numbers such that 0

85. ## algebra 1

because i have to sketch, label and mark each figure. sketch, label and mark each figure. 1.Isoscles obtuse triangle TRI with vertex angle T. 2.Rhombus RHOM with acute

86. ## math

From the top of a lighthouse 210 feet high, the angle if depression to a boat is 27 degress. Find the distance from the boat to the food of the lighthouse. The lighthouse was built at sea level.

87. ## math

A laffer leaning against a house maes an angle of 60 degress with the ground. The foot of the leadder is 7 feet from the foundation of the house. How long is the ladder? Please help

88. ## maths

how long will it take a sum of money to tripe itself at (i) 9.5% compound interest and (ii) 9.5% simple interest?

89. ## maths

We can cut a square diagonally in half to get two triangles. Suppose the perimeter of the square is 3cm longer than the perimeter of a resulting triangle. What is the perimeter of the square?

90. ## Laissez-faire

Please simplify this for me. Cant understand this at all. Laissez-faire is synonymous with what was referred to as strict capitalist free market economy during the early and mid-19th century as an ideal to achieve. It is generally understood that the

91. ## Economics

Suppose you deposit \$5,000 in a bank which pays 10 percent interest compounded twice a year. The actual annual interest rate you receive is: a- 10 b-11 c-10.25 d-12

92. ## chemistry

The legal limit for drunkenness is 0.08 ( 0.08 grams of alcohol per 100ml of blood). expired air contains the following main gaseous components by volume: 74.1% N2; 15.0% O2; 6.0% H2O; 0.9% Ar; and 4.0% CO2 at 37 degrees Celcius and 1 atm. Determine the

93. ## Math

Liz, jas and Sam each have a collection of marbles. The three of them pool their marbles to make a larger collection. They weigh the marbles on a postal scale. Together they have 2\$6 marbles which.weigh 183 ounces. What is the average weight(unit rate) of

94. ## space

How much is 2000 kg in outer space?

95. ## physics

find the speed and period of a satellite that would orbit Mars 203 km above its surface.

97. ## math

If a circle has a diameter of 2 3/8 inches, then what is the length of the radius

98. ## english

Which of these sentences is correct or illustrates the best style? (Points : 1) Greg got a new job. He had an interview on Monday. The company hired him that day. Greg got a new job. He had an interview on Monday, and the company hired him that same day.

99. ## chemistry

How many moles of oxygen are needed to produce 7.43 moles of sulfur trioxide?

100. ## Economics

In long-run equilibrium there will be no economic profit in a purely competitive static economy because: 1- barriers to entry will prevent profit from arising. 2-there will be no uncertainty, no innovations, and no monopoly. 3- there will be no need for

101. ## HELP!!!!!!!!!

Introduced into a 1.50L container is 0.100mol PCl5(g). The flask is held at 227degreesC until equilibrium is established. What are the partial pressures and the total pressures of the gases in the flask at the equilibrium. PCl5(g)PCl3(g)+Cl2(g)

102. ## physics

An electron in an electron beam experiences a downward force of 1.9×10^−14 N while traveling in a magnetic field of 6.4 × 10^−2 T west. The charge on a proton is 1.60×10−19. a) What is the magnitude of the velocity? b) What is its direction?

how do networks help small business by overcoming the major obstacle of being small? explain with examples.

104. ## Physics

A hydrogen atom initially in its ground state (n = 1) absorbs a photon and ends up in the state for which n = 3. What is the energy of the absorbed photon? *I found the energy of the atom at the ground state and at n = 3. I subtracted the final from the

does australi have an enterprise culture ? if not , why not ? discuss

106. ## physics

A proton moves perpendicularly to a mag- netic field that has a magnitude of 3.09×10^−2 T. The charge on a proton is 1.60×10−19 C. What is the speed of the particle if the magnitude of the magnetic force on it is 3.50*10^−14N? Answer in units of

107. ## physics

A thin 2.82 m long copper rod in a uniform magnetic field has a mass of 44.2 g. When the rod carries a current of 0.238 A, it floats in the magnetic field. The acceleration of gravity is 9.81 m/s2 . What is the field strength of the magnetic field? Answer

108. ## Chemistry

What is the theoretical yield of aspirin if you have 2g of salicylic acid and 5 ml acetic anhydride?

109. ## allied health

briefly summarize how diagnostic test reports can be used in the following: diagnosis patient management screening

110. ## Analytical Chemistry

I need to prepare a standard iron solution by dissolving an appropriate mass of solid Fe(NH4)2(SO4)2*6H2O in water in a 1L volumetric flask containing 1 ml of 96 wt% H2SO4. The final concentration should be ~40mg/L. How would I calculate the this?

111. ## physics

An airplane flies 200 km due west from city A to city B and then 245 km in the direction of 31.5° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A?

112. ## Chemistry

In a series of decays (hypothetical), the nuclide Ra-227 beomes Pb-203. How many alphas and how many betas are emitted in this series? Give two answers: first, give the number of alpha decays; then, the number of beta decays. I know that there are 6 alpha

113. ## literature

in at least 4 sentences, compare and contrast the literary elements in the autobiographies of frederick douglass (my bondage and my freedom) and benjamin franlin

114. ## u.s. history

To what extent and in what ways did the great depression and the new deal alter americans perception of the legitimate role of government in the economic and social life of the united states?

115. ## Chemistry

Construct the data chart and the pH curve for the titration of 25 mL of 0.1 M CH3COOH with 0.1M NaOH. Add the titrant 1 mL at a time and calculate the pH after each addition

116. ## english

using appropriate punctuation, including plurals and possessives in writing.

117. ## Math

Four candidates are running for president of the student council. three other candidates are running for vice-president. how many different ways can the two offices be filled?

A sweater that was

119. ## MATh

Which expression means y is three times the size of x? A. Y= x + 3 B. Y = x over 3 c. Y = x - 3 D. y = 3x A manufacturing company's sales decreased by 0.1%. Which of the following is equivalent to 0.1%? F. One percent G. One - tenth percent H. one-

120. ## Statistics

Outliers are often easy to spot in histograms...my question is can a historgram have more than one outlier.

121. ## Intro to Statistics

A sample has n = 9 scores and an SS = 216. What is the variance for this sample?

122. ## Geography check

My question is what country's capital is in the terra fria zone and there are 3 answers, I don't know which one is correct. They are Mexico, Colombia, and Ecuador. Can you please help me choose the right one?

123. ## scirence

hpw do water and dissolved materials move through non-vascular plants?

124. ## College Physics

I'm asked to find the shortest wavelength photon emitted for the paschen series for the hydrogen atom. I used the Rydberg equation and substituted the appropriate values. Frequency= Rh(1/3^2)-(1/infinity^2) I get an answer of 820 nm. My online homework

125. ## Geometry

how to you solve: the radius of circle Z is 13.5 units long. Find the length of each arc for the given angle measure. if the angle measure is 120 degrees?

126. ## History

which country was part of New Granada in the 19th century?

127. ## new art history

compare and contrast san vitale and sant' apollinaire

128. ## economics

use the expenditure equation for gdp=c+i+g+xn find the values for each sector for the years 1929 and 1933. determine the precentage change for the two years.

129. ## chemistry

which is the correct formula for the combustion of S8 at STP, (a) or (b)? a) S8(s) + 4O2(g) ==> 4SO2(g) b) S8(s) + 8O2(g) ==> 8SO2(g) someone told me it is (a), but that is not balanced... or is it right? please and thank you!!!!

130. ## physics

How high does a rocket have to go above Earth's surface until its weight is one fourth what it would be on Earth?

131. ## Math

A plumber charges \$45 for a service call, plus \$70/h for her time. a. Find the cost of a two hour service call. b. How long was a services call that cost \$150? Also ....... as the weight held by a spring increases, the length of the spring increase

132. ## calculus

You wish to get to the other side of a river that is three miles wide you are 5 miles

133. ## Quick Qustion

In math, when you have an amount in money and you are asked to round to the nearest dollar, how would you do that? Example: \$2,100.00 is rounded to \$2,000? Is \$48.50 rounded to \$50.00?

134. ## Physics

How do I solve this question: What is the resistance of a laptop computer that has an 11V battery & requires 15W of power?

135. ## MAth

Country Currency Rate U.S \$ 1.0 Austria Schilling 11.465 Finland Markka 4.954 United KIngdom Pound 0.572 She bought plane ticket for 150 pounds in the united kingdom. How much would it cost in Austria?

136. ## geometry

what is the volume of a solid whose base is shown on the left and whose sides are 2 yards tall. dimensions are in feet

137. ## science

please help.....i don't have my txt book with me an i need 2 kno everything bout Non-Vascular and Vascular plants....please rovide a website...........i cant find any

138. ## physics

A man moves along a semi-circle. What is the relation between distance covered (S) by him and his displacement (D)? S = D S > D S < D

139. ## Math

The two sides of a isosceles triangle have a fixed lenght of 14 cm. The opposite angle at the base of the triangle increases by 0.3 rad/min. a) what is the growth rate dx/dt of the base of the triangle when the opposite angle mesures 1.6 rad? (Use the law

140. ## chemistry

how much cobalt-60 remains 15 years after it is initially made?cobalt-60 has half life 5.27

Could you please check these two answers: 1.Fill in the blank with what would logically follow: primero,_______ I think it is segundo, correct? 2.Fill in blank with what would logically follow: tercero_________ I think it is cuarto, correct? 3. In a

142. ## physics

The resultant of two forces acting on the same point simultaneously will be the greatest when the angle between them is 180⁰ 45⁰ 0⁰ 90⁰

143. ## Math

The variable d represents the cost of a customer's meal, in dollar. The following expression represents the amount paid, including tax. d + 0.18d F. The cost plus eighteen percent of the cost G. the cost minus eighteen percent of the cost H. the cost plus

144. ## algebra

Minimum Wage: The table shows minmum wage for three different years Year 1940 1968 1997 Wage (\$) 0.25 1.60 5.15 (a) Make a scatterplot of the data in the viewing rectangle [1930, 2010, 10] by [0, 6, 1] (b) Find a quadratic function given by f(x) = a(x –

145. ## Math

A box contains 2 blue marbles and 7 red marbles and two marbles are drawn with out replacement. The probability of not getting a red marble is

146. ## Science

calculate the mass of sodium nitrate in grams in a 150 ml solution of a 5.00 M solution of sodium nitrate

147. ## physics

A box is placed on top of another box,if it is exerting a compressive force of 500N.What is the approximate weight of the box?

148. ## chemistry

Consider the exothermic reaction CoCl42-(aq) + 6 H2O(l) Co(H2O)62+(aq) + 4 Cl -(aq). Will the equilibrium concentration of CoCl42- increase or decrease when the following changes occur? a) HCl is added. (b) Co(NO3)2 is added. both of those compounds are

149. ## math

5 blue and 3 green what are probabilty of getting blue

150. ## science

Where can I get any good scientific journals which might have info on dingoes

151. ## Physics

A motorcycle with a mass of 350 kg is accelerated from rest to a velocity of 30 m/s by a force of 4000 N. calculate the distance over which this acceleration occurred.

152. ## math

factor: 2x^3 - x^2 - 162x + 81 Thank you

153. ## College Math

Trade Discount at 12% add 3% what is the net cost equivalent rate of the series discount?

154. ## physics

A proton moves perpendicularly to a mag- netic field that has a magnitude of 3.09×10^−2 T. The charge on a proton is 1.60×10−19 C. What is the speed of the particle if the magnitude of the magnetic force on it is 3.50*10^−14N? Answer in units of

155. ## com-155

Students are often confused about the use of the words good and well in their writing. Write a 100-word passage to Susan Anker, the author of the course’s textbook, in which you describe five details from her book that are good and five details about the

156. ## Chemistry

a sample of helium gas is in a closed system with a movable piston. the volume of the gas sample is changed when both the temperature and the pressure of the sample are increased. the table below shows the initial temperature, pressure, and volume of the

157. ## Math

Country Currency Rate U.S Dollar 1.0 Austria Schilling 11.465 Finland Markka 4.954 United Kingdom Pound 0.572 Suja bought a plane ticket for 150 pounds in the united kingdom. How much would the same plane ticket cost in Austria? question 2 Jaisen earned

158. ## physics

An electron in an electron beam experiences a downward force of 1.9×10^−14 N while traveling in a magnetic field of 6.4 × 10^−2 T west. The charge on a proton is 1.60×10^−19. a) What is the magnitude of the velocity? b) What is its direction?

159. ## PHYSICS

A thin 2.82 m long copper rod in a uniform magnetic field has a mass of 44.2 g. When the rod carries a current of 0.238 A, it floats in the magnetic field. The acceleration of gravity is 9.81 m/s2 . What is the field strength of the magnetic field? Answer

160. ## math

How may committees of size 4 is to be selected from a group of 7 local students and 6 overseas students.

161. ## hca

You are an allied health professional talking with a supervisor about a particular patient. Begin describing the patient’s concerns and affected areas using medical language

162. ## math

How many license plates consisting of 2 letters (upper case) followed by two digits are possible?

163. ## accounting

accounting and Organizational Cultures: A Field Study of the Emergence of a New Organizational Reality"

164. ## Everything

WHY IS THERE SO MUCH HOMEWORK? Id rather have another hour of school than an hout of homework!

165. ## english 2

i need to write an essay on TO KILL MOCKINGBIRD, and the topic is; "Discuss three themes of the novel. in addition to the more obvious themes of prejudice and injustice that the author develops, other possible themes include: growing up, superstition,

166. ## European History

I was wondering if someone could check my thesis statement for my DBQ on the causes of WWI. (political, social, and economical). WWI, which involved all of the great powers of Europe, was sparked by the multitude of military alliances and treaties, the

167. ## math probability

3 people are selected at random without replacement out of 12 girls and 3 boys. What is the probability of selecting all girls?

168. ## math

The number of distinguishable permutations that can be formed from the letters of the word PRINT is 120.ITS THAT TRUE or FALSE

169. ## Algebra

Is y=3x+67 a linear equation?

170. ## math

There are 20 people in a club. In how many ways can the club elect a president, a secretary and a treasurer, on person can hold more than one office?.

171. ## math

A student of MA101 is preparing a course schedule for the next semester. The student may select one of three mathematics courses, one of three science courses, and one of five courses from social sciences. How many schedules are possible?

172. ## statistics

At a church bazzar they have a game of chance that consists of picking a two digit number(0-9).You can bet 1\$ by picking a two digit number if you match two numbers you win 25\$ if you match one the numbers in the same order you win 3\$ if you bet 24 and 42

173. ## math

is 17 14 and 6 measurements of a right triangle?

174. ## math

what is the set of A if we let A={0,3,5,7}

what this the answer for this question We can conclude from paragraph a)theories are often revised. b)theories are never modified. c)theories are always changed. d)theories are mostly illogical. The concept that the Earth is a sphere can be traced back

176. ## Math

Four candidates are running for president of the student council. three other candidates are running for vice-president. how many different ways can the two offices be filled?

177. ## Algebra 2

I need to know if I did this problem correctly: 5. Solve for x in |x - 3| >8 Work: |x - 3| >8 |x| > 8 +3 Anwer= x > 11 I also need help with these 2: 15. Comepare the quantity in Column A with the quantity in Column B. Column A- slope of y = 2x +2 Column

178. ## physics

Explain what ideas led Bohr to suggest a new atomic model; and state Bohr postulates. Explain also, in words, what the correspondence principle is in atomic physics.

179. ## SCIENCE

THE FASTER YOU WORK THE MORE YOU GET OF MA . WHAT AM I

180. ## chemistry

How many liters of hydrogen will be produced by the decomposition of 59 grams of dihydrogen dioxide at STP?

181. ## physics

Evaluate the Rydberg constant R using Bohr theory and show that its value is R = 1.0974x10-1.

182. ## Biology

What 'EXPERIMENT' did Craig Venter & Francis Collins do in the Human Genome Project? Any links would be great! I've found a lot of info. on what it is, but I'm looking for info on what they did to get there.

183. ## Math/Solving side lengths of similar figures!!!

I have to find out what (x) equals. it shows me two triangles. ABC and XYZ. XYZ's sides are X-6 Y-10 and Z-8. ABC's sides are A-(x) B-25 and nothing for C. i need to find the value of (x). I'm expelled from school, and I get taught at the library everyday

184. ## physics

Calculate the ionization energy of doubly ionized Lithium, which has Z=3. Construct also the energy level diagram for it.

185. ## physics

The third longest wavelength in the Paschen series in hydrogen corresponds to what transitions?

186. ## math

the expiremental probability that ryan will have math homework on a given school day is 80%.on how many of the next30 school days can ryan expect to have math homework?

187. ## Math

Today Justin reached 1/11 the age of his mother was when he was bron. Today, Justin's mother is _____ times as old as Justin.

188. ## Math

Sean's mom was 27 years old when he was born. When Sean is 14 years old his mother's age will contain the same two digits as Sean's age. The next time that Sean's age and his mother's age contain the same 2 digits ____ years later.

189. ## intermediate algebra

the length of a rectangular swimming pool is four times the width. If the primeter is 160 feet, then what are the length and width

190. ## math

if a basketball player shoots 50 free throws and makes 23% of them,how many free throws did he make?

191. ## CHEMISTRY

When SbCl3(g) (4.867 mol) and 0.01217 mol/L of Cl2(g) in a 400.0 L reaction vessel at 958.0 K are allowed to come to equilibrium the mixture contains 0.008586 mol/L of SbCl5(g). What concentration (mol/L) of SbCl3(g) reacted? SbCl3(g)+Cl2(g) = SbCl5(g)

192. ## Math- Calculus

Let f be a function such that f(-1)=3 and f'(-1)=6 let h(x)=x^5f(x) evaluate h'(x) at x=-1

193. ## CHEMISTRY

When NO(g) (0.06623 mol/L) and 422.6 grams of Cl2(g) in a 180.0 L reaction vessel at 565.0 °C are allowed to come to equilibrium the mixture contains 3.096 mol of NOCl(g). What is the concentration (mol/L) of NOCl(g)? 2NO(g)+Cl2(g) = 2NOCl(g)

194. ## Math: Statistics

My homework has a list of numbers and I'm working with standard deviation. I know the standard deviation as well as the mean and everything, but it says to find "the weight that is 3 standard deviations below the mean." What is the formula for that, and

195. ## chemistry

If you add heat energy to water molecules i the form of ice,where does the energy go?

196. ## Math

a woman's clothing chain store, found that t days after the end of a sales promotion the volume of sales was given by S(t)= 20,000 (1+e^-.6t), 0 less than or equal to t less than or equal to 5 dollars. find to the nearest dollars the rate of change of

197. ## Intro to Psychology

For each of the following descriptions, identify a possibLe underlying personality trait. 1) Jenny is described by her coworks as overly sensitive, critical, and impatient. Her family describes her as warm and supportive. 2) Matthew is describes by his

198. ## Chemistry

A 10.0 ml sample of vinegar which is an aqueous solution of acetic acid, requires 16.5ml of a 0.500M NaOH solution to reach the endpoint in a titration (where the moles of acid are equal to the moles of base). What is the molarity of the acetic acid

199. ## Math

For the function y=(x^4)-(2x^2)+1 Identify all relative extrema. Identify any points of inflection. Identify the absolute extrema on the interval[-2,3].

200. ## math

find the value of pi in the following: sin pi=cos(pi + 40) sin(80 - pi)=cos pi

201. ## Math

solve for x: 8^x=(1/64)^(x-4)

202. ## PRECALCULUS

write the complex number in standard form a+bi sqrt 7 (cos pi/12 + i sin pi/12) (sqrt = square root, i= imaginary number)

203. ## social studies

where is antigua volcano

204. ## Economics

Slim city is a town resided by slim people, with no health club in town. LA Fatness has estimated that the annual demand for their Fatness Club in this town to be Q = 160 - P. Every Club member has a marginal cost of \$40, and the annual fixed cost of the

205. ## Compound math

(Future Value) Suppose you invest \$8000 into an account that pays an annual interest rate of 6.2%. How much is in the account after 30 years if a. simple interest is compound monthly? b. interest is compounded monthly? c. interest is compounded daily?

206. ## statistics

The highest acceptable level of pesticide found in quail has been limited to 0.35 parts per million (ppm). A hunting organization measured the level of the pesticide found in a random sample of 20 quail harvested from field trials. The sample produced a

207. ## Accounting

(Present Value) What is the present value of an annuity that pays \$250,000 in 30 years if interest accumulates at a rate of 7.5% compounded semiannually? (i.e. How do you have to pay NOW for the policy? You make no payments other than your lump sum

I have read and read this promble and I just am not understanding it, could some one please help. I have been out of school for a long time. The length of the Statue of Liberty's index finger is 8 feet while the height to the top of the head is about 111

209. ## Accounting

If your credit card company charges you 1% per month on your balance, what effective annual rate of interest is it charging?

210. ## Natural Regions

What benefits would Old growth trees provide for the logging industry? Paper is the only advantage I can think of.

211. ## Integrated Physics and Chemistry

A thermostat is used for which of the following? A) Maintaining the temperature is a room B)Turning a heating system on C)Turning a heating system off D)All of the above

212. ## Calculus

Find the equation of the line tangent to the graph of y=4 e^x at x=2. I always get confused with tangent lines I worked this out to be 4e^x(x-2)+4e^2 but the program i have to submit it to says its wrong.

213. ## math

is a line graph a table?

214. ## English

I just have two sentences for you to check. Thank you very much. 1) She is going to do a school internship (?) during her summer holiday. In particular, she is going to work as a recepionist in a confectionary factory. She won't be paid for it. 2) You can

215. ## Chemistry

Calculate the mole fraction of the solute. 3.10% ethanol, by volume (d=0.993 g/mL; pure C2H5OH, d=0.789 g/mL)

217. ## Japan's Nuclear Crisis

How does nuclear fission create energy? Nuclear energy is produced through the splitting, or fission, of a uranium atom in the core of a nuclear reactor. When hit by a neutron, the atom divides and releases two other neutrons, as well as heat and

218. ## Japan's Nuclear Crisis

I don't know why. Please help me. Why did the reactors at the Fukushima plant overheat? Because of Nuclear power generation?

219. ## math

you save 6 dollars on monday.each day after that you save twice as much you saved before.what table can i make to solve?please help!!!!!!!!!!

220. ## statistics

a study by Hewitt Associates showed that 79% of companies offer employees flexible scheduling. suppose a researcher believes that in accounting firms this figure is lower. The researcher randomly selected 415 accounting firms and through interviews

221. ## math

what shape has 4 equal sides and 4 right angles?

222. ## Laissez Faire

I found the passage I posted about Laissez Faire on Wikipedia.

223. ## Maths and Physics

Law of Gravitation- Find an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is neglected. The gravitational constant for g is, G = 6.67428*10^-11 m^3 Kg^-1 s^-2 (10 marks).

224. ## Algebra

(2 the square root of 3+1)(the square root of 3-4)

225. ## Math

A bag holds 40 erasers that are each the same size and shape.Eight of the erasers are red. You reach into the bag and select one eraser at random, what is the probability it is not red?

226. ## Maths

Are zeros which are after the decimal point significant?

227. ## science

what is the lfe expectancy of a person with tay-sachs disease

228. ## algerbra

the area of trianlge ABC is 20 square units. if abgle A=130 and b=6 find the value of c?

229. ## managerial eco

A single price setting monopolist faces the demand : P = 4000-5Q, TC = 0 + 400Q. For the single price-setting monopolist, tell me profit maximizing quantity, price,total revenue, total cost, profit and consumer surplus.

230. ## Discrete Math

isisDOTpolyDOTedu/courses/discretemath/problemsDOTpdf Link is above can you please take a look? Specifically #21 on pg. 345. [There are 900 3DN], I need help with g-h. Thank you.

231. ## religion

okay so i'm doing a scrapbook for my saint project and i was wondering if there is a software i can download which is like a digital scrapbook.

232. ## math

Simply the expression 3(2+3) squared/ 7-2 - 10 squared/5

233. ## Math

A=P(1+r)^2 A= interest P= principle interest r= interest rate t= time in years If \$4500 invested at 7% interest compounded annually yeilds \$15600, for how many years was the money invested?

234. ## chemistry

i am trying to find the average rate of h2? from mastering chemistry home work. part a answer was 0.027m/s and part b answer was 0.054m/s. i cant find part c home answer

235. ## JAPAN

What advice did the japanese government give to people living near the Fukushima power plant? Residents within 20 km of the facility were told to leave and those within 30 km were told to stay indoors with doors and windows sealed. Anything else?

236. ## Hamlet

This question is in regards to Hamlets to be or not be speech. Historians have noted that some of the most effective leaders in recent history, including some recent Presidents, have not been considered to be especially intelligent. They have made quick

237. ## JAPAN

For what reasons are you in favour of using nuclear energy to generate electricity? What reasons would you be against nuclear power? For the against part--that would be that it's a big step of risk towards human health. For the favourable part--I guess

238. ## Chemistry

At standard temperature a gas has a volume of 275ml if the temperature is increased to 130C buit the pressure is held constant what is the new volume?

239. ## Math-Geometry

In a jar there are 18 marbles. There are 3 red marbles, 9 green marbles, 6 blue marbles. What is the probability of drawing (with replacement) a red marble and then a green marble? Please write the answer in fraction form? Show how you did all the work.

240. ## substition algebra

solve x & y: 3X-6Y(-6X+34)=30

241. ## Algebra

d: 2 2 3 4 10 5 3 x y x x z z − −     +  

242. ## Com/155

Read the summary paragraph on the bottom of p. 37. Identify the author’s goal in writing the paragraph. How effectively do you think the author met that goal? The paragraph is below. Hockenbury and Hockenbury tell us that daily hassles often cause more

243. ## English

Is this a correct use of a semi-colen?: "However Petra was taken over in 100 CE by the Romans, and was still occupied during the Byzantine period; but it soon became not as much of an importance after that, besides being used as a fort for the Crusaders in

244. ## consumer math

A tackle box is a rectangular solid with sides of 15 in., 12 in., and 9 in. What is its volume?

245. ## chemistry

2LiOH + Co2 = Li2CO3 +H2O If a cannister absorbed 100.0g of CO2 from the air that resulted in the production of 148.5g of Li2CO3, what was the percent yeild for Li2CO3.

246. ## College Algebra

If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with \$989.50 a month in take-home pay, then the amount you earned before the

247. ## Nuclear Crisis Worker appreciation

the workers who have been trying to bring the nuclear crisis under control volunteered 4 the job. what factors might they have weighed when deciding whether or not to stay behind and help. What qualities do you think these people must possess? Why do you

248. ## Algebra 1

In triangle ABC ,if

249. ## algebra 1

what are values of a and b, if any , where a|b-2|

250. ## Science

What happens to your image that is initially observed in a flat mirror from 10 feet away and then you move further away to 20 feet?

251. ## algebra1

The area of trapezoid is h( b1+b2)/5, where h is the altitude, and b1 and b2 are the lenghts of the parallel bases. If trapezoid has an altitude of 5 inches, an area of 55 sguare inches , and one base 12 inches long, what is the lenghth, in inches, of its

252. ## Prime Minister

If you were Prime Minister Stephen Harper, what position would you take on the issue of nuclear power generation in Canada? I would just stop, and end the nuclear generations. It's better than dealing with risks, and entering the zone of danger. I need

253. ## algebra 1

In right triangle ABC below, what is the sine of

254. ## algebra 1

A laffer leaning against a house maes an angle of 60 degress with the ground. The foot of the leadder is 7 feet from the foundation of the house. How long is the ladder? Please help

255. ## math

can some one help 3>4+5+

256. ## algebra 1

From the top of a lighthouse 210 feet high, the angle if depression to a boat is 27 degress. Find the distance from the boat to the food of the lighthouse. The lighthouse was built at sea level.

257. ## algebra 1

sketch, label and mark each figure. 1.Isoscles obtuse triangle TRI with vertex angle T. 2.Rhombus RHOM with acute

258. ## physics

a 2 kg object is released from rest from a height of 10 m above the ground.calculate the kinetic energy at the moment it reaches 4 m above the ground with potential energy 200J

259. ## us history

what did sojourner truth saw as a solution to the problem.y do teachers give us complicaited stuff omg yes i used stuff

260. ## chemistry

Fe2O3+ 3CO=2Fe+3Co2, suppose that 1.64kg of Fe are obtained from a 2.62kg sample of Fe2O3 (ore). assuming that the reaction goes to completion, what is the percent purity of the Fe2O3 in the original sample.

261. ## Human & Social Biology

describe how social biologists may help to solve the problems of housing lacking sanitation

262. ## Math 9

2 extension ladders are leaning at the same angle against a vertical wall. The 3 meter ladder reaches 2.4 meters up the wall. How much farther up the wall does the 8 meter ladder reach?

263. ## Physics

A ray of light of frequency is 5.09 x 10^14 Hz is traveling from water to medium X. The angle of incidence in water is 45 degrees and the angle of refraction in Medium X is 29 degrees. The index of refraction of Medium X is 1.94. Calculate the wavelength

264. ## ETH 125

Journal Entry of a subordinate group

265. ## LifeOrintation

Identify one enviromenral or human factor tha causes ill health,accidents

266. ## English

I urgently need to check if everything is correct. I hope everything is OK. 1) Outline the main features of the Renaissance with particular reference to its concept of order. 2) Remind a friend of yours, who has never flown in an airplane, what he should

267. ## Chemistry

What is the final temperature when 750 J of energy is added to 9.0 g of ice at 0.0 degress C?

268. ## ETH 125

Journal Entry of Subordinate of African Americans

269. ## Nuclear FIssion

How does nuclear fission create energy? Nuclear energy is produced through the splitting, or fission, of a uranium atom in the core of a nuclear reactor. When hit by a neutron, the atom divides and releases two other neutrons, as well as heat and

270. ## Socials

Why did the reactors at the Fukushima plant overheat?

271. ## Socials

What advice did the japanese government give to people living near the Fukushima power plant? Residents within 20 km of the facility were told to leave and those within 30 km were told to stay indoors with doors and windows sealed. Anything else?

272. ## us history

list two reasons that stereotypes creted by propaganda may gave affected the deciosion to drop the atomic bomb on japan

273. ## Socials

For what reasons are you in favour of using nuclear energy to generate electricity? What reasons would you be against nuclear power? For the against part--that would be that it's a big step of risk towards human health. Not safe, and safety should always

274. ## physics - please hellp

I need help with two questions: 1) An object can only have a charge that is an integral multiple of the charge on the ___. Am I correct with "electron" as the answer? or possibly elementary charge? 2) The difference in potential between any two points in a

275. ## Le Chatelier's Principle

If the equation is : Cd2+(aq) + Cl-(aq) ¡ê CdCl+ What would happen when Na+ is added would it shift to the right or will there be no change/effect to the system?

276. ## Chemistry

A solution has a volume of 2L and contains 36g of glucose, what is the molaritiy of the solution?

277. ## physics

A dish of hot food has an emissivity of 0.42 and emits 15 W of thermal radiation. If you wrap it in aluminum foil, which has an emissivity of 0.06, how much power will it radiate?

278. ## chemistry

220 ml of an HCl solution that is 31.4% by mass is required to neutralize .50 gal of the chlorine solution. what is the molarity of the OH- of the clorine solution? chlorine solution is NaOCl in NaOH

279. ## trig

angle x lies in quadrant 3 and cos(x)=-.6. Find cos(3pi/2-x)

280. ## algerbra 2

if a jet printer prints an articlae in 12 minutes and a laser printer prints the same in 29 minutes if they work together how many minutes

281. ## physics

You are standing at a spot where the magnetic field of the Earth is horizontal, points due northward, and has magnitude 36.9 μT. Directly above your head, at a height of 12.3 m, a long, horizontal cable carries a steady DC current of 381 A due northward.

282. ## physics

Two 173 turn coils, each with a diameter of d = 4.45 m, are placed w = 1.31 m apart, as shown in the figure. A current of 6.99 A is flowing in the wires of both coils; the direction of the current is clockwise for both coils when viewed from the left. What

Which of the following statements are true? Fusion reactions result in nuclei with higher Z. To keep a nuclear power plant going, a chain reaction must be maintained. Nuclear fusion produces no long-lived radioactive by-products. The Sun is a nuclear

284. ## Chemistry

Estimate the enthalpy change for the following reaction OH(g)+CH4(g)==>CH3(g)+H2O(g)

285. ## chemistry

A 1.00-L sample of dry air at 25 °C contains 0.0319 mol N2, 0.00856 mol O2, ... The main components of dry air, by volume, are N2, 78.08%; O2, 20.95%; Ar, ... by volume, of the following main gaseous components: N2, 74.1%; O2, ... What is the partial

286. ## Geometry

A certain type of cube has 2-inch edges. What is the maximum number of cubes than can be put into a box that measures 2.7 feet by 3.2 feet by 4.1 feet?

287. ## math

A cone has a slant height of 10 centimeters and lateral area of 60pi square centimeters. What is the volume of the sphere with a radius equal to that of a cone? -we tried solving and got 4.37 or so for the radius and we couldn't get any further than that

288. ## physics

You are standing at a spot where the magnetic field of the Earth is horizontal, points due northward, and has magnitude 36.9 μT. Directly above your head, at a height of 12.3 m, a long, horizontal cable carries a steady DC current of 381 A due northward.

289. ## physics

You are standing at a spot where the magnetic field of the Earth is horizontal, points due northward, and has magnitude 36.9 μT. Directly above your head, at a height of 12.3 m, a long, horizontal cable carries a steady DC current of 381 A due northward.

290. ## p

A square ammeter has sides of length l = 3.75 cm. The sides of the ammeter are capable of measuring the magnetic field they are subject to. When the ammeter is clamped around a wire carrying a DC current, as shown in the figure, the average value of the

291. ## trig

The parametric equations for a curve in the x-y plane are x=2+t^2 and y=4-3t. Determine the points where the curve intersects the x-axis.

292. ## statistics

I need a good research question for my statistics project. I have to compare two to calculate the difference. variance/standard deviation etc.

293. ## math

At Andrews sweet shop almond fudge costs \$5.23 per pound, and vanilla fudge costs \$4.17 per pound. Allison buys 0.75 pound of almond fudge and 1.25 pounds of vanilla fudge. About how much will Allison pay altogether (excluding tax)?

294. ## human resources

Describe human development and the factors that have stimulated research in this aera.