# Questions Asked onFebruary 20, 2017

1. ## History

Why did Russia's withdrawl from the war hurt the Allies? A The Russians had almost won the war before they had to withdraw B Germany was able to travel to Russia to attack the allies C The Russians begin to fight against the allies D Britain and France

2. ## 6th grd. MATH QUIZ HELP!!!!

Questions- 1) Solve the equation 3x=-3=-18 a) x=-7 b) x=-5 c) x=-3 d) x=5 THERE ARE MORE QUESTIONS!

3. ## Statistics

Wendy's restaurant has been recognized for having the fastest average service time among fast food restaurants. In a benchmark study, Wendy's average service time of 2.2 minutes was less than those of Burger King, Chick-fil-A, Krystal, McDonald's, Taco

4. ## algebra

A car cost \$25,750.00 and depreciates in 20% per year how much will the car be worth in 5 years

5. ## math

An observer in a lighthouse 48.8 m above sea level saw two vessels moving directly towards the lighthouse. He observed that the angles of depression are 42 and 35 degrees. Find the distance between the two vessels, assuming that they are coming from the

6. ## Statistics

A CBS News/New York Times survey found that 97% of Americans believe that texting while driving should be outlawed (CBS News website, January 5, 2015). a. For a sample of 10 Americans, what is the probability that at least 8 say that they believe texting

7. ## Science

How many moles of mercury will be produced by electrolyzing 1.0M Hg(NO3)2 solution with a current 2.00A for 2 hours.

8. ## math

From the top of the control tower 250 m tall, an airplane is sighted on the ground below. If the airplane is 170 m from the base of the tower, find the angle of depression of the airplane from the top of the control tower.

9. ## math

A 12-meter high post casts a 19-meter shadow. Find the angle of elevation to the sun. -what is/are given? -formula used -solution

10. ## Quantitative Reasoning (MATH)

If the national economy shrank at an annual rate of 11​% per year for three consecutive​ years, then the economy shrank by 33​% over the three​-year period.

11. ## Physics

A 71 kg skydiver jumps out of a plane at an altitude of 1370m. She reaches terminal velocity of 68m/s. She opens the parachute at an altitude of 328m, and lands with a speed of 2.8m/s. a)How much (negative) work is done by air resistance before she opens

12. ## Science

1. Which of the following is an example of matter A.Leaves B.Shadows C.Light from the sun D.Sound

13. ## Chemistry

N2(g) + 3 H2(g) → 2 NH3(g) [balanced] If 5.42 g of nitrogen gas are reacted with 5.42 g of hydrogen gas, which of the reactants is the limiting reactant? Use the molar mass data below if necessary. Molar mass of N2 = 28.02 g/mol Molar mass of H2 = 2.02

14. ## English

) (4) Her carpets were planned for, so not woven, until she knew the size of the room in her new home in which it was to be used. Read the passage. Look at the underlined section marked number 4. There may be a mistake in the way the sentence is written.

15. ## physics

A car travelling at 25 m/s slams its break leaving skids marks along a distance 125 m as it comes to rest. the coefficient f friction between the tire and the road is a 5 b 2.5 c 1 2 .4 e .25 A 500N worker pulling a 500 N crate on a rope with a force of 50

16. ## Algebra 1

Suppose a spherical asteroid has a radius of approximately 9.0 x 10^2m. Use the formula 4/3*pi r^3 to find the approximate volume of the asteroid. 2.57 * 10^9 m^3 1.07 * 10^4 m^3 2.54 * 10^10 m^3 4.51 * 10^10 m^3 I've worked 4/3*pi*10^2 = 900 meters... but

17. ## math

A hiker is 400 meters away from the base of the radio tower. The angle of elevation to the top of the tower is 46 degrees . How high is the tower?

18. ## Chemistry

Consider compounds trans-4-tert-butylcyclohexanol and 4-tert-butylcyclohexanone below. Using silica gel TLC plates, which of these two compounds will have the higher Rf value when dichloromethane is the developing solvent? Why? Does it possibly have to do

19. ## Algebra

2.1/ x+1 4/5 = 3/10x The fraction 2.1/x+1 4/5 equals 3/10x. Find out what x equals.

20. ## Math

my divisor is 5 I'm greater than 4 X 5 I'm less than 5 x 5 my remainder is 1 what dividend am I

21. ## Chemistry

3Cu(s) + 8HNO3(aq) → 2NO(g) + 3Cu(NO3)2(aq) + 4H2O(l) If 15 g of copper metal was added to an aqueous solution containing 6.0 moles of HNO3, how many moles of NO(g) would be produced, assuming a 59.8 % yield.

22. ## Chemistry

A sample of 10.7 g of O2 reacts completely with CO to form CO2. 2 CO + O2 → 2 CO2. How many grams of CO is required.

23. ## english 101

which word or phrase is wrong? Her mother asked her what would she do after she graduated from college. her-would-she do-from

24. ## algebra

Ms. Allison drew a box-and-whisker plot to represent her students scores on a midterm test. Lowest value=44 Lower quartile=47 Median=72 Upper quartile=81 Highest value=96 Jason received 47 on the test. How does Jason's score compare to his classmates? A.

25. ## physics

What is the magnitude of your total displacement if you have traveled due west with a speed of 23 m/s for 125 s , then due south at 12 m/s for 255 s ? 2sf What is the direction of your total displacement in part A.

26. ## Chemistry

If 32.3 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass? 5.94% KCl 8.55% KCl 14.4% KCl 16.8% KCl Can someone explain this to me? I don't want the answer I just want to know how to find it.

27. ## ELA

The Peachtree Road Race is unique as a 10K road race in three distinctive ways: it is run on the 4th of July, it has a rich tradition, and it is the most competitive 10K in the world. Which is the BEST meaning for distinctive as it is used in the selected

28. ## Math

Ms. Allison drew a box-and-whisker plot to represent her students scores on a midterm test. Lowest value=44 Lower quartile=47 Median=72 Upper quartile=81 Highest value=96 Jason received 47 on the test. How does Jason's score compare to his classmates? A.

29. ## physics1

What is the magnitude of your total displacement if you have traveled due west with a speed of 23 m/s for 125 s , then due south at 12 m/s for 255 s ? Express your answer using two significant figures. What is the direction of your total displacement in

30. ## Math

Peanuts, walnuts, and cashews are mixed by volume in the ratio 5:3:2, to make a party snack. The number of cups of walnuts needed to make 12 cups of party mix are between: a) 1 and 2 b) 2 and 3 c) 3 and 4 d) 4 and 5 Math - Ms. Sue, Monday, February 20,

31. ## Math

Kenny will invest \$16,000 in an account with an annual interest rate of 5% and the interest is compounded quarterly. How much money will be in the account in 7 years? How will I set this up?

32. ## physics

In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 17 m/s at an angle of 39 ∘ above the horizontal. How long does it take for the ball to reach the wall if it is 3.8 m away? How high

33. ## math

A diagonal of a parallelogram forms 25° and 35° angles with the sides of a parallelogram. Find the angles of the parallelogram.

Can you PLEASE help me with this problem? I do not understand... The area of a triangle can be found by using the formula A=1/2bh. The area of the triangle can be represented by the expression -17.5x2^ - 138.5x - 27. The triangle's base length is greater

35. ## stats

A preliminary survey shows that 35% of college students smoke. In a class of 42 students, what is the probability that more than half the students smoke?

36. ## biology

A bacterium has a genome size of 6.0 X 106 base pairs. There is one Origin of Replication (ORI) and each DNA polymerase catalyzes the addition of 1,000 nucleotides/second. How much time is needed to replicate the entire genome?

37. ## English

4) 1 The first rugs were made as a part of their need. Read the passage. Look at the underlined section marked number 1. There may be a mistake in the way the sentence is written. If you find a mistake, choose the answer that corrects the mistake. If there

38. ## English

"Yet thrusting perpetually under siege. Your armed struggles for profit" What does these stanzas from On the Pulse of Morning mean? Please help me

39. ## calculus

A convex lens of a focal length f can be defined by the lens equation 1/f=1/p + 1/q if an object is a distance p from the lens, then the distance q from the lens to the images. For a particular lens, f=2cm and p is increasing find 1. a general formula for

40. ## Pre Calculus 30

1.How many positive three-digit integers can be made from the digits {3,4,5,6,7} if digits may be repeated? 5x4x3=60 2.In how many ways can all of the letters of the word HEXAGON be arranged if the arrangement must start with a consonant and end in a

41. ## value

show that the sum of nterm of the progression is logx,logx^2,logx^3,logx^4---is n(n+1)/2 logx

42. ## Algebra

there are three nickels three dimes and four quarters in your pocket. you randomly pick three coin and place them on the counter. the first two coin are a dimes, and the third is quarter

43. ## Algebra

I spent hours on this and I still cant figure it out please help me: Let L1 be the line passing through the points Q1=(4, 2, −3) and Q2=(5, 5, −5). Find a value of k so the line L2 passing through the point P1 = P1(3, 7, k) with direction vector

44. ## Health & Physical Education

Hello, I REALLLYYY need help with my Health and physical ed quiz. I have ONE question that i need help answering. please and thank you. 1) Your doctor tells you that you and your twin sister have the same basal metabolism rate (BMR). You live independent

45. ## Algebra 1

When dividing two numbers written in exponential notation, what do you do with the exponents of 10? add subtract multiply divide I flat out do not know, can somebody please tell me what it is and why?

46. ## Math

According to legend, manhattan islansd was purchased in 1626 for 24 dollars. If the 24 dollars have been invested instead at a rate of 6% interest per year, what would its value be in 2011?

47. ## history

Hi, can someone please explain what it is I am to do. Here is the question. (I am extremely confused. thanks for your time!) -thanks- identify the headlines that could be described as yellow journalism and explain how these headlines and their stories

48. ## math

There are 3 red balls and 7 blue balls in Bowl A, and 8 red balls and 2 blue balls in Bowl B. Mandy rolls a die and if a prime number is up, Bowl A is selected; otherwise Bowl B is selected. Then Katie draws a ball randomly from the selected bowl. Find the

49. ## Chemistry

how many chloride ions are in 0.28 mol MgCl2?

50. ## value

the 3rd term of a gp is 63 and 5th term is 567.find the sum of the 6th term of the progression

51. ## chemistry

empirical formula for K 60.0% C 18.5% N 21.5% and P 7.5% I 92.5%

52. ## Physics

A stone is dropped from a hot air balloon that is rising at a constant speed of 2.2 m/s. If the stone takes 4.8 seconds to reach the ground then … a) What was the height of the balloon at the moment the stone was released? b) What is the height of the

53. ## Math

The fruit plants in my garden do not bear fruit during their first summer. The fruits are picked for the next two years and then the plants become too woody and need to be pulled up. Occasionally some of the die over winter. The last five years I had fruit

54. ## chemistry

N2(g) + 3 H2(g) → 2 NH3(g) [balanced] If 5.42 g of nitrogen gas are reacted with 5.42 g of hydrogen gas, which of the reactants is the limiting reactant? Use the molar mass data below if necessary. Molar mass of N2 = 28.02 g/mol Molar mass of H2 = 2.02

55. ## Chemistry

You put a rock weighing 45g into a graduated cylinder. Before you put the rock in the graduated cylinder, the volume of water in the cylinder is 10mL. After you put the rock in the graduated cylinder, the volume rises to 25mL. What is the density of this

56. ## math

an equilateral triangle has three equal sides , which equation could be used to find the measure,M,of one angle A.180+3=M ---- B.3 x 180 C. 180-3=180 D. 180 divided by 3=M if you know all the answer GREAT!!!

57. ## Statistics

The Information Systems Audit and Control Association surveyed office workers to learn about the anticipated usage of office computers for personal holiday shopping (USA Today, November 11, 2009). Assume that the number of hours a worker spends doing

58. ## Maths

the cost of ploughing a square field at ₹13.50 per meter is ₹5400 find the cost of fencing the field at ₹28.50 per meter

59. ## Physics

which of the following is NOT true about the path of a cannon ball launched horizontally from the earth's surface if air resistance is neglected? a. the cannnonball has a uniform horizontal velocity b.the total velocity of the cannon ball increases as a

60. ## Vectors

A boat is capable of 20 km/h in still water. You wish to cross the river downstream so that the angle the boat's push makes with the bank is 50 degrees. At what angle to the bank should the boat steer if the current is 8 km/h? How long will it take to

61. ## mathmatics

A man has Rs 10000. he lost 2/5 of his money and he spent 1/4 of the reamainder. find the reamaining money with him now.

62. ## physics

An electron in a cathode-ray tube is traveling horizontally at 2.10×109 cm/s when deflection plates give it an upward acceleration of 5.40×1017 cm/s2 . How long does it take for the electron to cover a horizontal distance of 6.30 cm ?What is its vertical

63. ## Algebra

Solve algebraically using only variable: The length of a rectangle is two less than three times its width. If the area of the rectangle is 65, find the length and the width. (The area of a rectangle is equal to its length times its width.

64. ## math

the angle of elevation of the top of the building from a point 30 meters away from the building is 65 degrees

65. ## Math Algebra

Solve algebraically using only variable: The length of a rectangle is two less than three times its width. If the area of the rectangle is 65, find the length and the width. (The area of a rectangle is equal to its length times its width.

66. ## Physics

The electric field from an infinitely large and uniformly charged sheet is independent of the distance from the sheet, yet the individual charges in the sheet all produce fields that object the inverse square law. Why doesn't the field get weaker at

67. ## physics

An electron in a cathode-ray tube is traveling horizontally at 2.10×109 cm/s when deflection plates give it an upward acceleration of 5.40×1017 cm/s2 .How long does it take for the electron to cover a horizontal distance of 6.30 cm ? What is its vertical

68. ## geometry

write an indirect proof to prove that if there is a line and a point not on a line, then exactly one plane contains them

69. ## chemistry

. What would be the molarity of the solution produced when 276 mL of 6.00 M NaOH is combined with 125 mL of a 2.00 M NaOH solution?

70. ## physics

IP A white-crowned sparrow flying horizontally with a speed of 1.70 m/s folds its wings and begins to drop in free fall How far does the sparrow fall after traveling a horizontal distance of 0.400 m

71. ## Algebra

The perimeter of a rectangle is 46 inches, and the area is 120 square inches. Find the length and width of the rectangle.

72. ## Chemistry

A 5.0×101 kg sample of water absorbs 324 kJ of heat. If the water was initially at 22.2 ∘C, what is its final temperature?

73. ## chemistry

Create balanced equation, given the two compounds in aqueous solution may react with one another. State whether or not a chemical reaction occurs. Make sure to include the state of each reactant and product. If a precipitation reaction occurs, provide the

74. ## Pre Calculus 30

I'm having a hard time understanding the fundamental counting principal and I don't even know where to start on some of the questions.Here are a few questions I'm having trouble with. 1.Andrea, Brian, Carol, David, Emmalee, Floyd, and Gloria are to stand

75. ## Esol

in which sentences fast used as adverb? The cars on the overpass moved fast -the fast car drove over bridge-the battle couldn’t hit the fast pitch-the clock is 10 minutes fast- --------------- my answer=The cars on the overpass moved fast

76. ## physics

The Earth is 150 million km from the sun. It completes one orbit in a period of approximately 365.25 days. Calculate the orbital speed of Earth in km/hour. please helpppp

77. ## Algebra

Ratio reduced to lowest terms 139 hours to 2 days

78. ## Maths

If a farmer has 90 animals in a field.4/9 are sheep,1/3 are cows,1/10 are horses and the rest are pigs.How many pigs are there?

79. ## Chemistry

Write the Kc expression for the following reaction: Fe3+ + SCN- = FeSCN2+

80. ## math

1]find two possible values for the geometric mean of –1/4 and –4 [2]form a G.P that has two geometric means between (a)1029 and –3 (b) 2/k and 1/4k

81. ## college chemistry

Calculate how much carbon you use in a year, by considering how much driving you do a year. If I use 500 gal per year, what is my answer? balanced combustion equation which shows how the main component in gasoline reacts in your car and produces carbon

82. ## math

20 men dig a trench in 12 days,how many men would be needed to do it in 10 days

83. ## Politics

Compare Britain's and America's government. How are they similar? How are they different? Consider things like: Who is the leader of their country or their executive? Who makes the laws in their country? How do their elections work?

84. ## 02 - Corporations: Organizations and Stock, Exam 2

Dividends in arrears occur when the company doesn’t pay dividends to A. cumulative preferred stockholders. B. noncumulative preferred stockholders. C. participating preferred stockholders. D. nonparticipating common stockholders.

85. ## Algebra

4.5cm is 75% of

86. ## physics

A soccer ball is kicked with a speed of 16.7 m/s at an angle of 45.0 ∘ above the horizontal.If the ball lands at the same level from which it was kicked, for what amount of time was it in the air?

87. ## Math

The fruit plants in my garden do not bear fruit during their first summer. The fruits are picked for the next two years and then the plants become too woody and need to be pulled up. Occasionally some of the die over winter. The last five years I had fruit

88. ## science

A gardener holds a hose 0.75m above the ground such that the water shoot out horizontally and hits the ground at a point 20m away.What is the speed with which the water leaves the hose?

89. ## Math

Problem: Tad draws three cards at random, without replacement, from a deck of ten cards numbered 1 through 10. What is the probability that no two of the cards drawn have numbers that differ by 1? Express your answer as a common fraction. Scott's solution:

90. ## Math

the age of the father is square of the age of his daughter . five years hence the fathers is three times as old as daughter .write the quadratic equation

91. ## History

Who does Robespierre round up and execute

92. ## Teacher Aide / Language and other Barriers

A student who has limited English proficiency would mist likely be placed in a(n) A. ESL I class B. ESL II class C. LEP Class D. Sheltered-content class. My answer I am confused with B and C. So please help me

93. ## psychology

Dr. Zimand is studying testosterone levels and their influence on aggression in adult males. It is likely that Dr. Zimand specializes in the ____________ approach to psychology.

94. ## algebra

system of equations c-3d=27 4d+10c=120

95. ## Math

Peanuts, walnuts, and cashews are mixed by volume in the ratio 5:3:2, to make a party snack. The number of cups of walnuts needed to make 12 cups of party mix are between: a) 1 and 2 b) 2 and 3 c) 3 and 4 d) 4 and 5

96. ## math (precalc)

Find a polynomial with integer coefficients that satisfies the given conditions. R has degree 4 and zeros 3 − 4i and 5, with 5 a zero of multiplicity 2.

97. ## Chemistry

How many grams of K2SO3 would be required to react completely with 200.0 mL of 0.245 M HCl

98. ## Math

A wire is stretched from the top of a two feet tall anchor to the top of a 45 foot tall antena. If the wire is straight and has a slope of 3/5, then what is the length of the wire in feet?

99. ## Math

If a circular railroad crossing sign has a diameter of 30in what should its areas be?

100. ## Math

Monica wants to know what she needs to get on the exam to get a certain grade in her English class. The term Mark is worth 70% of the course and exam is worth 30%. The following is the formula used to calculate her overall Mark. Course Mark = term Mark +

101. ## Linear algebra

Let L1 be the line passing through the points Q1=(−2, 1, 1) and Q2=(−4, 4, 0) and let L2 be the line passing through the point P1=(−6, −6, 0) with direction vector →d=[9, 6, 3]T. Determine whether L1 and L2 intersect. If so, find the point of

102. ## math

Mrs.Santiago is 36 yrs. old and her son is 4 years old. When will the mother be thrice as old as her son?

103. ## chem

22.5 grams of lithium reacts with 33.5 grams of aqueous aluminum sulfate

104. ## Algebra

Solve algebraically using one variable: Find three consecutive odd integers such that the product of the first integer and the third integer is equal to nine more than twelve times the middle integer.

105. ## Math

Find area of rectangle whose length is 3 cm and 1 diagnal is 5 cm

106. ## Math

A large hose will fill a pool in 40 minutes while it takes a smaller hose 60 minutes to fill the same pool. The same pool requires 80 minutes to drain if the drain is open. Suppose one day both hoses are turned on, but by accident the drain was left open.

107. ## geomatry

Prove algebraically that the ratio of perimeters of two triangles is 1:4 if the ratio of their corresponding sides is 1:4

108. ## math

1.Nancy is 3 times as old as Cathy. In seven years, she will be ten years older than Cathy. What are their present age?

109. ## English

what is passive voice

110. ## Physics

What happens to the location of the image when the radius of curvature changes? I think it moves farther away when the curvature increases.

111. ## accounting

Given the cost of direct materials of \$500 and the labour rate of \$20 per hour. Assuming the predetermined overhead rate is \$5 per hour and the actual hours is 50 hours - please calculate the total cost of this job?

112. ## Algebra Word Problem

Solve algebraically using one variable: Find three consecutive odd integers such that the product of the first integer and the third integer is equal to nine more than twelve times the middle integer.

113. ## math

The ratio of the units digit to the tens digit is one-half. The tens digit is two more than the units digit.Find the number.

114. ## Math

A number is such that thrice its 14 less than 5 times the number.find the number

115. ## Math

While solar energy powered home systems are quite expensive to install, adding some passive energy features to conventional construction can make a substantial reduction in heating and cooling costs. Passive solar requires no machinery and uses the

116. ## math

A pentagon has a perimeter of 60 inches, a side measures 12 inches. what is the sum of the measures of the interior angles.

117. ## Science

You have been challenged to lift a weight of 200 kg from the floor.Your challenger has the same task and also lifts a 200 kg from the floor but they take longer time to do so.Who has completed more or less work?Explain.Who has used more power?Why?

118. ## Production and Operation management...Pls Help me

Explain,with examples,how the operation function set target relating to quality or meeting planned production schedules.

119. ## Esol

which of them is correct? gosh, i be ordering a v-8! -- gosh,i coulda had a v-8!--gosh, i should ordered a v -8 !--gosh, i could have had a v-8!-- my answer, gosh, i could have had a v-8!

120. ## Algebra

Solve algebraically using one variable: Find three consecutive odd integers such that the product of the first integer and the third integer is equal to nine more than twelve times the middle integer.

121. ## Science

You have been challenged to lift a weight of 200 kg from the floor.Your challenger has the same task and also lifts a 200 kg from the floor but they take longer time to do so.Who has completed more or less work?Explain.Who has used more power?Why?

122. ## calculus

The position of a particle is given by the equation of motion s(t)= 1/(1+t)where t is in sec and s in meters find the velocity.

123. ## Science

density of wood that is 20 cm below water and 60 cm above water

124. ## value

liquidity ratio

125. ## math 1

c-3d=27 4d+10c=120

126. ## History

What was the name of the new freedom of the press newspaper created by Jean Paul Marat

127. ## Algebra

can you please help me with this problem: 30y2^ + 60y + 300 = 5y2^ + 120y -24 25y - 60y + 324 = 0 used the quadratic equation (used the square root) x = -60 (60)2^ - 4(25)(324) / 50 x = -60 (3600 + 32,400)/50 x = -60 +or minus(-28,800) / 50 x = -60 +

128. ## College Algebra

For fx=6x-5 and gx=3x^2-4 find the following (fog)(x) Having problems understanding (gof(x)=g(f(x))= 3(f(x))^2-4 3(6x-5)^2-4 (36x-9-25)-4

129. ## Math 115

While solar energy powered home systems are quite expensive to install, adding some passive energy features to conventional construction can make a substantial reduction in heating and cooling costs. Passive solar requires no machinery and uses the

130. ## Algebra

Can you please confirm that my answer is correct to this problem? 80x2^ - 96x + 27 =0 I am using the quadratic formula to solve... I would put the formula here but I can't put the square root sign in here. My answer is -1.33 and -2.22 Is this correct?

131. ## Math

How many square meter of wallpaper is required for a wall that has perimeter of 25 feet and 8 feet height

Fe3+ and CN-

133. ## Algebra

Hello...can you please let me know if I worked this problem correctly: 10Z2^ + 8z - 7 = 16z2^ + 48z - 12 0 = 6z2^ + 30z - 5 a = 6 b = 30 c = -5 x = 30 + or - (30 2^ -4(6)(-5) / 12 x = -30 + 31.937 / 12 = .161 x = -30 - 31.937 / 12 -5.161 Am I on the right

134. ## Biology

What is the path that electrons take in C3 photosynthesis?

135. ## Algebra/Math

How much dry substance is there if we have 150g of 8% of a solution of this substance.

136. ## Social Studies

Would surviving the holocaust affect religion or spirituality? Why?

137. ## math

So far this year Nick has scored a 75, 81, 88 and 92 on four of his math tests. Each test is worth a maximum of 100 points. To earn a B this year, Nick needs a test average of 80 or better. Write the inequality that represents this scenario. Let t equal

138. ## Math

In a book closet, mathematics books are kept in stacks of 4. If each student carries no more than one stack, what is the least number of students needed to carry books for a class of 23? Is the answer five or six students?

139. ## English

I know that when we are writing essays, we cannot use the words we, you, etc. Is it okay if we use the words they, them, their?

140. ## Thermal physics

Explain thermal physics in details

141. ## math 1

4x+y=8 2x-3y=1

142. ## Vocabulary

Mary gulps down a cup of tea quickly. I am not sure whether use present or past tense. Please help to check. Thanks & regards,

143. ## math

Write the inequality that represents the solution set for −15/9 y

144. ## English

"I and the Tree and the Rock were one" What does it mean that the River, tree and rock were one?

145. ## physiology

how many grams of glucose (180grams/mole) to make a 13% glucose solution with a final volume of 600 milliters.

146. ## Math

In a two digit number the tens digit is two less than the units digit.If the digits are reversed, the sum of the reversed and the original number of 154.Find the original number.

147. ## math 1

system of linear equations of substitution. a=2/b-3 a=2b-8

148. ## History

When does the Terror end and who seizes control of france? July 27 1794 and Napolean

149. ## math 1

4x+y=2 -2x-3y=1