1. maths

A rectangular sheet of paper 30 cm X 18cm can be transformed into a right circular cylinder in two ways - by rolling the paper along its length or by rolling it along its breadth . Find the ratio of the volume of two cylinders formed.

2. Chemistry

1. How much heat is added to 40.0 g of ice at –20 o C to convert it to steam at 120 oC? 2. How much heat is added to 25.0 g of ice at –25 o C to convert it to steam at 120 oC? 3. How much heat is added to 10.0 g of ice at –20 o C to convert it to

3. maths

A shopkeeper marks his goods in such a way that after allowing a discount of 25% on the marked price , he still makes a profit of 50%. find the ratio of the C.P. to the M.P.

4. math

given that vectors(p+2q) and (5p-4q) are orthogonal,if vectors p and q are the unit vectors,find the dot product of vectors p and q?

5. Trigonometry

From an observation tower that overlooks a small lake, the angles of depression of point A, on one side of the lake, and point B, on the opposite side of the lake are, 7degrees and 13degrees, respectively. The points and the tower are in the same vertical

6. psychology

To ensure that the memory of a child is accurate, it is important to: A. ask him to draw a picture of the event B. reward him for telling what happened C. reassure him that his friends have had the same experience D. avoid the use of leading questions or

7. physics

Ten bags of top soil, each weighing 180 N, are placed on a 2.90-m long sheet of wood. They are stacked 0.50 m from one end of the sheet of wood, as shown below. Two people lift the sheet of wood, one at each end. Ignore the weight of the wood, how much

8. Algebra

I have a few questions I need help with. They are to help review for our exam. 4) Without graphing, is each system independent, dependent, or inconsistent? -x-3y=0 x-y=4 (i believe dependent) dependent independent inconsistent 6) Which matrix represents

is a turtle a person place or thing?

10. math

how would i find the sum of the 7 term. if i have 1st term = 11 and 7th term = 704.its a geometric series. i don't know how to find the difference?

11. math

at the beginning of the summer, conan had \$180 in the bank. each week he deposits another \$64 that he earns mowing lawns. is his account balance proportional to the number of week since he started mowing lawns?

12. psycology

Prescott is an old hand in the print shop. He insists that there's only one dependable kind of process for printing a three-color brochure. By contrast, Baldwin recognizes several different approaches to three-color printing through the use of new digital

13. Maths

If O is the centre of the circle and the area of sector OAPB is 5/18 of the area of circle . Find angle.

14. physics

If the torque required to loosen a nut that is holding a flat tire in place on a car has a magnitude of 31.0 N·m, what minimum force must be exerted by the mechanic at the end of a 34.0 cm lug wrench to accomplish the task?

15. Math

Don breaks a4 by 7array into a 2 by 7 array and another array. What is the fact for dons second array? Write a.number sentence that models the relationship of the 4 by 7 array to the other two arrays

16. maths

the inside perimeter of a running track shown in figure is 400m the lenghth of each of the straight portion is 90, and the ends are semicircles, if the track is 14 m wide everywherwe,find the area of the track. also find the length of thee outerboundary of

17. maths

a solid sphere of radius r is melted and cast into the shape of a solid cone of height r, then the radius of the base of cone is

18. Chemistry..

A chemical engineer calculated that 15.0 mol H2 was needed to react with excess N2 to prepare 10.0 mol NH3. But the actual yield is 60.0% . Write a balanced chemical equation for the reaction. Is the amount of H2 needed to make 10.0 mol NH3 more than, the

19. Meidcla Terminology

Some technical terms pass into common usage as knowledge about a field spreads. Think of three such terms that have passed into common usage recently. Here are my Answers would this be correct? DNA IV High Blood Pressre or Hypertension

20. ap chem

The diatomic molecule OH exists in the gas phase. The bond lengthand bond energy have been measured to be 97.06 pm and 424.7 kJ/mol.Knowing that only the 2p orbitals of will interact significantlywith mol, respectively. Assume that the OH molecule is

21. math

The ratio of zinc and copper in an alloy is seven ratio nine if weight of copper in the alloy is eleven point kg then find the weight of zinc in the alloy

22. Math

The Dubuque Cement Company packs 80-pound bags of concrete mix. Time-study data for the filling activity are shown in the following table. Because of the high physical demands of the job, the company's policy is a 23% allowance for workers. a) Compute the

23. Biology

In a lab on lung capacity where lung volumes (Tidal Volume, Expiratory Reserve Volume, Inspiratory Capacity, Inspiratory Reserve Volume, and Vital Capacity) are measured... Why can't you measure the Inspiratory Reserve Volume (IRV) directly? (In the

24. Functions 11: Series and Sequence 2

The sum of the first two terms of a geometric sequence is 3. The sum of the next two terms is 4/3. Find the first four terms of the sequence.

25. math

Two jets are traveling toward each other and are 4000km apart. The rate of one jet is 100km/h faster than the rate of the other. If the jets pass each other after 2.5 hours, what is the rate of the faster jet?

26. Trigonometry

A baseball diamond is a square with sides 27.4m. The pitchers mound is 18.4m from home plate on the line joining home plate and second base. How far is the pitcher's mound from first base?

27. Physics

1. Suspend the meter stick by a string from its center. 2. Notice carefully where it balances. It probably will not balance exactly at 50 cm. All distances must be measured to this point (called the fulcrum). 3. Hang a 200 g mass on one side and a 50 g

28. math (algerba 1)

I have a worksheet called puzzle 21 Super Challenge. It's from Crossmatics, Dale Seymour Publications and it's page number is 21. Anyways, I don't understand what it means when it says see 4-across. What does that mean?

29. Math

I would like to challenge you tutors....... RIDDLE: YOU HAVE TWO BUCKETS. ONE IS A 5- GALLON BUCKET AND THE OTHER IS A 3- GALLON BUCKET. HOW CAN I GET 4 GALLONS IN THE 5-GALLON BUCKET? HAHAHZSEE IF YOU CAN SOLVE IT.......TUTOR, THE MASTER...

30. algebra

without graphing is each system independent, dependent, or consistent? -x-3y=0 x-y=4 please someone help me

31. algebra

which matrix represents the system of equations below. -2x-7y=3 7x-6y=12 not sure how to figure this out.

32. social studies

plzz HELP me with my social studies i need to get this one done within 10 min plzz 1. Which word most closely means civility? (1 point) respect discipline patriotism liberty 2. Civic-mindedness most encourages people to (1 point) speak their minds about

33. Physics

A bell with a fundamental frequency of 880 Hz is moving toward an observer at 3.5 m/s. If the speed of sound is 343 m/s, what pitch would be heard by the observer

34. maths

find the equation of a straight line on which the perpendicular from the origin makes an angle of 30 degree with the x-axis and which forms a triangle of are 50/root3 with the axes

35. ap chem

Show how a hydrogen 1s atomic orbital and a fluorine 2p atomic orbital overlap to form bonding and antibonding molecular orbitals in the hydrogen fluoride. Are these molecules sigma or pi molecular orbitals?

13. A baseball bat and 8 baseballs cost \$163.25. The bat costs \$106.45. What is the cost c of one baseball? (1 point) 163.25 – 8c = 106.45; \$33.71 8c + 106.45 = 163.25; \$7.10 8c + 163.25 = 106.45; \$7.10 8c – 106.45 = 163.25; \$33.71 14. Mark weighs 74

37. math

a baseball club has 18 players for every team, with the exception of four teams that have 19 playes each. is the number of players proportional to the number of teams?

38. math

What is the least common denominator for the fractions 5/27 and 5/36 ?

39. economics

John has a job that requires him to travel 3 of every 4 weeks. He has an annual budget and can travel either by train or by plaine. The airline on which he typically flies has a frequent traveler programme that reduces the cost of his tickets according to

40. algebra

which steps transform the graph of y=x^2 to y=-(x-3)^3+2 would it be 3 units to right translate up 2 units

41. algebra

Xpower2 -15+50=0

42. economics

John has a job that requires him to travel 3 of every 4 weeks. He has an annual budget and can travel either by train or by plaine. The airline on which he typically flies has a frequent traveler programme that reduces the cost of his tickets according to

43. math

The area of a triangle is fifty cm square if altitude is of eight cm what is the lengh of its base

44. math

what is the quotient of 100 and the sum of b and 24

45. Geometry

If the base(b) of a triangle is 9 inches and the height(h)is =12 in. Then what is the area?

46. Algebra

Could someone be nice enough to check my answers please? 1)Identify a pattern and find the next number in the pattern. -2,3,8,13 my answer; 18 2)Name the property of real numbers illustrated by the equation. -4(x+4)=-4x-16 my answer; distributive property

47. math

What is the of a parallelogram with base nine cm side length twentyseven cm and height twenty cm

Project: Data Analysis The following chart lists the average low, average high, record low, and record high temperatures for the month of April in Denver, Colorado. Day Average Low Average High Record Low Record High April 1 32°F 58°F 6°F 78°F April 2

49. AP CHEMISTRY

What is the of a solution obtained by dissolving two extra-strength aspirin tablets, containing 594 of acetylsalicylic acid each, in 202 of water? The active ingredient in aspirin is acetylsalicylic acid , a monoprotic acid with Ka=3.3*10^-4 at 25 C. Can

50. Geometry

If the length(L) of a rectangle is 15 inches and the Width(W) is =2 in. Then what is the area?

51. mechanics -physics

A car moved at 15m/s for 2minutes, afterwhich it moved at 18m/s for 45seconds,calculate the average velocity of the car?

52. algebra

please help because am missing something.thankyou factor completely given that x+2 is a factor. 2x^3 + 7x^2 - 3x - 18

53. math

What is the perimeter of a parallelogram With base nine cm side lengh twenty seven cm and height twenty cm please help me

54. algebra

-If A and B are two different numbers selected from the first thirty counting numbers from 1 to 30 inclusive, what is the largest possible value of A+B/ A-B? -Ann takes medicine for a cold. She must take one pill every 8 hours and a teaspoonful of cough

55. English

Hamlet Take Home Test - Response Essay Answer ONE of the following questions in 750-850 word response: 1) The hero in a Shakespearean play always contributes in some way to the disaster in which he perishes. How true is this in Hamlet? 2) Discuss the use

56. algebra

-Alan sold his bike to Dan making a 20% profit. Dan sold the bike to Carol for \$180 which was a 25% profit for Dan. How much did Alan originally pay for the bike? - A positive number is increased by 20%. This new number is now decreased by 20%. To obtain

I HAVE NO IDEAAAAAA! Simplify the expression. 6. –6 – 7(c + 10) (1 point) 64 – 7c –76 – 7c 4 – 13c –16 – 13c 7. 2x + 3(x – 2) – 3(x – 6) (1 point) 2x + 12 2x – 8 8x – 24 2x – 24

58. Geometry

find the area of a triangle whose base(b) is 8 inches and whose height (h) is 12 inches

59. math

find the inverse of the following function. find the domain, range and asymptotes of each. f(x)=In(x+1)+1 please show work.

60. math

In how many years will rs ninehundred amount to rs one thousand one hundred and seventy at ten percent per annum please help me coz i must submit my homework after one days please help me and thankyou so much jiskha site love u

61. algebra

How do you slide a point from (0,-2) to (3.5,5)?

62. physics

a window washer pushes his scrub brush up a vertical window at a constant speed by applying a force f. the brush weighs 8N and the coefficient of friction is 0.4. calculate a) the magnitude of the force f. b) the normal force exerted by the window on the

63. physics

what has no beginning and no end. it is also considered as the medium for light in einstein's theory of relativity

64. Physics

A car (mass = 1080 kg) is traveling at 25.4 m/s when it collides head-on with a sport utility vehicle (mass = 2750 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport utility vehicle

65. Algebra

If someone invests \$8000 at 7%, how much additional money must he invest at 4% so that his total annual income may equal 5% of his entire investment?

66. math

the numerical expression for 7/8-3/4(2-1/6)-2/3 is equal to I made a common denominator of 24 21/24-1&+12/24+3/24-16/24 -15/24+3/24-16/24 -12/24-16/24 -28/24 both are divible by 2 -14/12 & divide both by 2 again to get -7/6 Is this correct? Thank you

67. physics

the sun goes the starry vault once a year, the moon goes completely around every month. does it follow the same path as the sun??

68. physics

a 25,000 kg helicopter carrying a 7200 kg load is accelerating up at 1.2 m / sec squared. What is the force of air resistance on the halicopter?

69. physics

what are the two things that determined the path of an object launched at an angle to the horizontal.

70. trigonometry help me

6.Prove that tan y cos^2 y + sin^2y/sin y = cos y + sin y 10.Prove that 1+tanθ/1-tanθ = sec^2θ+2tanθ/1-tan^2θ 17.Prove that sin^2w-cos^2w/tan w sin w + cos w tan w = cos w-cot w cos w 23.Find a counterexample to shows that the equation sec a – cos

71. us history

What was the platform of the American Party? Its other name? I can't find the platform anywhere.... I think it's other name is the Know Nothing Party but not sure. Please help!

72. us history

What year was the slave trade supposed to end? Why didn't it stop?

73. Functions 11: Series and Sequences

4m + 1, m + 1 and 10 - m are the first three terms of a geometric sequence. Find t4.

74. living enviornment

What structure is involved in carrying out each of the following life activities in the paramecium: A.INGESTION- B.DIGESTION- C.TRANSPORT- D.EXCRETION- E.WATER BALANCE- F.LOCOMOTION- G.REPRODUCTION- PLEASE HELP ME OUT

75. Physics

A mass m1 = 4.1 kg rests on a frictionless table and connected by a massless string to another mass m2 = 5.9 kg. A force of magnitude F = 32.0 N pulls m1 to the left a distance d = 0.83 m. 1) How much work is done by the force F on the two block system? 2)

76. math

f(x)=4-x^2 simplify completly. Use difference quotient.

77. Chemistry 30

In addition to alkanes, cracking reactions may also involve alkenes, alkynes and aromatics. For each of the following reactions, draw a structural formula equation. Include all reactants and products: a) but-1-ene --> ethyne + ethane b) 3-methylheptane -->

78. math

what is the unit rate for 22 gallons of gas to go 682 miles

79. programming

Write a php program for Currency conversion. Input Currency name, Value of Input Currency, Output Currency Name Output Currency Value. 1 dollar=50 Rupee 1 Pound= 1.5 dollar 1 Pound= 80 Rupee

80. Pre algebra

5.4=y-1.5.+2.3

Read the following passage from “The Medicine Bag.” But after they left, Mom said, “No more visitors for a while, Martin. Grandpa won’t admit it, but his strength hasn’t returned. He likes having company, but it tires him” That evening, Grandpa

82. Physics

A 48.8-kg skater is standing at rest in front of a wall. By pushing against the wall she propels herself backward with a velocity of -1.88 m/s. Her hands are in contact with the wall for 0.763 s. Ignore friction and wind resistance. Find the average force

83. Math

A small pizza is of diameter 14 cm and a medium pizza 28 cm. Is a medium pizza twice as large as a small pizza? Use calculations to support your answer. A medium pizza is cut into 3 equal parts, and each part is sold for \$15. A small pizza is sold for \$12.

84. help plzzzzz

Discuss the responsibilities a parent has to volunteer parents when these parents are invited to participate in learning activities. Include five responsibilities in your discussion and give an example of each.

In written communications, your tone is transmitted by your: A. image. B. body language. C. words and perceived spirit behind them. D. facial expressions. I think the answer is c

86. health

What supplement has been known to reduce symptoms of aggression and depression in patients, especially women with borderline personality disorder? A. Omega-3 fatty acids B. Vitamin K C. Folic acid D. Biotin

87. algebra

turn 2x-y-4>0 into y equal

88. Algebra 1

little help? 1)The function g(t) = 2t represents the number of guitar lessons, g(t), you can complete in t months. How many guitar lessons can you complete in 7 months? 2)A taco stand sells tacos for \$3.25 each. The stand’s expenses for the day are \$210.

89. math

Find the slope and y intercept of the equation y=(2-a)x+a I know how to find slope and y intercept; I just don't know how to solve this.

90. US History

I have a few questions about World War I that I can't seem to find information about in any textbooks or online: Was Russia forced to act in defense of Serbia to protect access to the warm water of the Black Sea? Did France extend support to Russia in an

91. Algebra

need help. The skier goes down the slope distance d and time t. The relationship between d and t can be represented in the following form d = at = bt^2 where a nd b are constants. If given d=11 t=2 and d=28 t=4 how to calculate values of a and b. Calculate

92. math

A community center has 3 tennis teams and 5 basketball teams. No one is on both teams. How many athletes are there?

93. functions

4m + 1, m + 1 and 10 - m are the first three terms of a geometric sequence. Find t4.

94. physics

Ten bags of top soil, each weighing 150 N, are placed on a L = 2.95 m long sheet of wood. They are stacked 0.50 m from one end of the sheet of wood, as shown in Figure 8-27. Two people lift the sheet of wood, one at each end. Ignore the weight of the wood,

95. physics

Two people are holding up the ends of a 4.40-kg wooden board that is l = 1.60 m long. A m = 7.00-kg box sits on the board, 0.50 m from one end, as shown below. What forces do the two people exert?

96. physics

Harris and Paul carry a surfboard that is 2.43 m long and weighs 143 N. Paul lifts one end with a force of 40 N.

97. math

Steve McSpoke left home on his bicycle at 8am, traveling at 18km/h. At 10am, Steve's brother set out after him on a motorcycle, following the same route. The motorcycle traveled at 54km/h. How long had steve traveled when his brother overtook him?

98. physics

A steel beam that is 6.00 m long weighs 332 N. It rests on two supports, 3.00 m apart, with equal amounts of the beam extending from each end. Suki, who weighs 550 N, stands on the beam in the center and then walks toward one end. How close to the end can

99. math

Two trucks left buck's trucks traveling in opposite directions. One truck traveled at a rate of 70km/h, the other at 80km/h. After how many hours were the trucks 900km apart? I got 3 hours as my answer, but I don't think that's right...

100. algebra 2

what is the y-intercept, the x-coordinate of the vertex and the equation of the axis of symmetry of the problem f(x)=2x^2

101. algebra

10n+6=15n-9 n=

102. math

which number is a multiple of 3? 16, 20, 24, 28

103. math

(h)t=-4.9t^2+98t+8 Find the max height?

104. math (algerba 1)

Ms. Driva Reck drove from her home to a service station at 48km/h. She returned home by bicycle at 16km/h. The entire trip took 4 hours. How far was the service station from Ms. Reck's home?

105. math

Maria said 7x3=21. Connie said 3x7=21. Who is correct? Explain.

106. physics

Jane weighs 150 lbs and Bob weighs 220 lbs. They decide to try skydiving. If they jump at the same time, who would reach the ground first

107. Math

A plane on a search mission flew east from an airport, turned, and flew west back to the airport. The plane crised at 300km/h when flying east, and 400km/h when flying west. The plane was in the air for 7 hours. How far from the airport did the plane

108. Algebra 1

1)A farmer plans to create a rectangular garden that he will enclose with chicken wire. The garden can be no more than 30 ft wide. The farmer would like to use at most 180 ft. of chicken wire. Write a system of linear inequalities that models this

109. algebra

10n+6=15n-9 In this equation what does n=

2. Which of the following synonyms of assurance has a negative connotation? (1 point) self-possession pompousness confidence 4. In the phrase, "the grim-faced Yankee principal," how is the word "Yankee" an example of semantic slanting? (1 point) It is used

111. math (algerba 1)

A motorboat can travel upstream on a river at 18km/h and downstream at 30km/h. How far upsteam can the boat travel if it leaves at 8am and must return by noon?

112. physical science

4. Jane weighs 150 lbs and Bob weighs 220 lbs. They decide to try skydiving. If they jump at the same time, who would reach the ground first

113. physical science

8. Which one has more momentum? Which has the greater impulse? a. A 2000 kg car moving at 5 m/s b. A 9 g bullet traveling at 450 m/s

114. chemistry

calcium metal (Ca) can be produced by passing an electric current through molten calcium chloride. chlorine gas is also formed. what is the balanced equation for this reaction

115. Math

Yoon Ki drove from Phoenix to tuscan in 1 1/2 hours. then she drove from tuscan to el paso in 4 3/4 hours. the second part of her trip was how many times as long as the first part. explain answer

4. In the phrase, "the grim-faced Yankee principal," how is the word "Yankee" an example of semantic slanting? (1 point) It is used with a negative connotation. It is an exaggeration. It presents a vivid image. Is the answer: It is used with a negative

117. Physical Science

What is the acceleration of an airplane with an initial velocity of 150 m/s and a final velocity of 175 m/s and the velocity change was made in 5 seconds? .

118. math

first term of the arithmetic sequence is 13. two other terms of the sequence are 37 and 73. common difference is consecutive terms integers. determine all possible values for 100th term.

119. geometry

What is the area of this scalene triangle 12x 15x 9x

120. spainsh 2

Provide the correct form of the conditional tense for the regular verbs in thefollowing sentences: 1. Si yo tuviera hambre, ________ (comer.) 2. Si el bebé tuviera sueño, él _______ (dormir.) 3. ¿Qué te _______ (gustar) pedir? 4. Me _________ (gustar)

121. Calculus

Assume that an airplane is flying toward you at a constant height, h miles and at a speed dx/dt. When the plane is x miles away, what is the rate of change of theta?

122. education

Even though the education profession continues to be a lower paying profession than other career opportunities, why do people continue to become teachers? discuss

123. Spanish

I need to unscramble some words in spanish. Can you help me 1) ripcarcat 2) nomrat 3)satdueri 4)icrncoa 5)raaperpr 6)mrorpac 7)cacreshu Thank you

124. maths

find out 10 pairs of one digit numbers whose product end with the digit 0?

125. Trig

Find the other five trigonometric ratios of theta. cos theta=7/20 cos theta=1/5

126. math

What is an expression that is equivalent to 3x(x+6y+21z)?

6/2(1+2)=

128. 7th grade language arts last question plz Ms. Sue

2. Which of the following synonyms of assurance has a negative connotation? (1 point) self-possession pompousness confidence Okay, for #2, you said my answer was correct (self-possession). My mom is saying that the answer is "pompousness". I don't know

129. physics

consider system shown in fig. 1. the coeffecient of kinetic friction between block a (m=10 kg) and the table is 0.20. calculate the weight of the hanging block required if this block is to descend at constant speed once it has been set into motion.

130. matematica

( 3x+5y =15,30) (6x+2y)=16,20 x ? y ? thanks

131. physics

a bottle is given a push along a tabletop and slides off the edge of a table. neglect air resistance. a) what force are exerted on the bottle while it is falling from the table to the floor? b) what is the reaction to each force ,that is, on what body and

132. english

sentence labeling

solve 9x

134. algebra

The total age of Friday and Fred is 68 years. Fred is thrice as old is Friday. How old is Fred?

135. math

t8=1024 and decrease by 2/3. what will be the sum of the first 7 term. i don't know what shud i do first to solve it.

136. ap calculus

How is the ap calculus AB and BC test? Is there any online practice test?

137. grammar

A plane on a search mission flew east from an airport, turned, and flew west back to the airport. The plane cruised at 300km/h when flying east, and 400km/h when flying west. The plane was in the air for 7 hours. How far from the airport did the plane

4. Which of the following has the lowest unit price? Brand A: 5 lb for \$3.50 Brand B: 8 lb for \$5.20 Brand C: 3 lb for \$2.25 (1 point) Brand A Brand B Brand C All brands have the same unit price.

A plane on a search mission flew east from an airport, turned, and flew west back to the airport. The plane cruised at 300km/h when flying east, and 400km/h when flying west. The plane was in the air for 7 hours. How far from the airport did the plane

141. 7th grade math Ms. Sue plese

Can you please help me solve these problems? I have no idea! 2. w over four – 4 = 3 (1 point) –4 28 3 11 3. d over three+ 10 = 7 (1 point) 51 20 0 –9 6. –6 – 7(c + 10) (1 point) 64 – 7c –76 – 7c 4 – 13c –16 – 13c 7. 2x + 3(x – 2)

142. science

A rock of mass 50kg is held at 45meter from the ground.it is allowed to fall freely.find the change in potential energy,when it is a height at 20meter from the ground.also find the speed at this time and kinetic energy ?

143. 7th grade math Ms. Sue

1. –9p – 17 = 10 (1 point) –3 16 18 –16 2. w over four – 4 = 3 (1 point) –4 28 3 11 3. d over three+ 10 = 7 (1 point) 51 20 0 –9 4. –2(m – 30) = –6m (1 point) –15 –13 –8 8 5. 2.9n + 1.7 = 3.5 + 2.3n (1 point) 3 –3 .3 1 Simplify

144. ap chem

in a sigma antibonding orbital where are the electrons most likly to be found in relation to the nuclei in a bond?

145. math

If a gallon of tea has 24 tbsp of sugar How much sugar is in 1 cup of tea ?

146. Algebra

Which is the correct answer to the following: Simplfy: 2 + 3 . 10 Devided by 5 . 3 - 9 A)"5 B) 21 C)"60 D) 11

148. math

how do you find out the interior and exterioir angle sums?

149. maths

A shopkeeper markes his goods at 40% above the cost price but allows a discount of 5% for cash payment to his customers . What actual profit does he make , if he receives Rs. 1064 after paying the discount

150. math confused help

what polygon has all exteeririor angle sums of 75 degrees? don't know need help like now!!!!!!!!!!

151. english

I want eight senteces about doctor for talking

152. math

A right trianglar field has a hypotenuse is fifty m and one side is forty m find the area of the triangle