# Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x + 10y = 58 -14x + 8y = 140

91,718 questions, page 644
1. ## physics

A skier of mass 75.0 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 60.0 m up a 35° slope (assumed to be frictionless) at a constant speed of 2.0 m/s?

asked by ed on October 19, 2010
2. ## HELP PHYSICS!! WORK

How much work is it to push a box (mass 190 kg) up an incline (angle 16 degrees with the horizontal) that is 8.3 meters long, if the coefficient of kinetic friction between the box and the incline is 0.6?

asked by Emma on April 10, 2016
3. ## microsoft P.P.

When planning a presentation, there are several factors you need to consider. Which of the following is one factor you should consider when initially planning your presentation? A. Location of audience B. Title placeholder C. Type of font D. Saving your

asked by Daniela on July 28, 2016
4. ## indian ridian ridge

Simplify the given expression to rational exponent form and justify each step by identifying the properties of rational exponents used. All work must be shown. 1/cubed root of x to -6 exponent

asked by dylan on March 7, 2015
5. ## physics

An ideally efficient freezer cools food to 260 K. If the room temperature is 300K, how much work does the freezer consume when removing 100J heat from the food?

asked by garnel on April 8, 2013
6. ## Physics HELP

A student has six textbooks, each with a thickness of 4.0 cm and a weight of 30 N. What is the minimum work the student would have to do to place all the books in a single vertical stack, starting with all the books on the surface of the table?

asked by Kels on October 4, 2011
7. ## Physics

Determine the work done by a person when lowering an object of mass 2.6 kg by a distance of 2.4 m. The person applies a force Fext such that the object moves with constant speed, i.e., without acceleration,

asked by Nikita on November 17, 2009
8. ## chemistry

A man consumes 50,000J of heat in doing his work out activities. A serving of his food provides him with 25,000J of energy. Interpret the energy values in terms of first law of thermodynamics.

asked by jaycab on January 23, 2011
9. ## microsoft PP

When planning a presentation, there are several factors you need to consider. Which of the following is one factor you should consider when initially planning your presentation? A. Location of audience B. Title placeholder C. Type of font D. Saving your

asked by Daniela on July 26, 2016
10. ## physics

A constant horizontal force of 20n pulls a wooden block with a mass of 4kg over a distance of 0,8m on a horizontal frictionless surface.calculate the work done by the force.

asked by heron on June 26, 2010
11. ## Business Law

Mario Juliano agrees to paint George O' Shea's house for \$1500 and to begin work on or before August 1. Juliano begins on August 4. Has she breached her contract?

asked by Sarah on May 23, 2011
12. ## Physics

What is the minimum work needed to push a 1075 kg car 230 m up along a 17.5° incline? (a) Ignore friction. (b) Assume the effective coefficient of friction retarding the car is 0.30?

asked by Hope on March 21, 2014
13. ## Algebra

I am supposed to divide (x^3+6x^2-20) by x^2+2, using long division. I know it's very difficult to type long division on the computer, but if you would be able to give me the answer, and I'd work backwords, that would be great, or a simple explanation.

asked by Jack on January 19, 2009
14. ## Physics

A reversible engine converts 1/6 of the heat input into work. When the temperature of the sink is reduced by 62C, the efficiency of the engine is doubled.What are the temperarure of the source and sink?

asked by Tulika on April 19, 2012
15. ## PHYSICS DUE SOON

In a running event, a sprinter does 5.5 105 J of work and her internal energy decreases by 8.8 105 J. (a) Determine the heat transferred between her body and surroundings during this event. _____J

asked by Ame on November 29, 2012
16. ## mathematics

In one year one dollar \$1 could be exchanged for one Euro and twenty cents A .. derive a formula to exchange dollars into euros. B.. use your formula to work out how many euros you would receive for \$250

asked by SARTHAJ on March 2, 2017
17. ## make check

Consider the following. (Give your answers correct to four decimal places.) (a) Determine the level of confidence given the confidence coefficient z(á/2) for z(á/2) = 1.65. Incorrect: Your answer is incorrect. . 0.90 is what I got and it was wrong, I

asked by Tom 84 on June 18, 2013
18. ## math

All the members of a construction crew work at the same pace. Six of them working together are able to pour foundation in 22 hours. How many hours would this job take if the number of workers: if the workers increased by the factor two

asked by Sean on October 20, 2017
19. ## Physics

How much work is it to push a box (mass 120 kg) up an incline (angle 16 degrees with the horizontal) that is 9.6 meters long, if the coefficient of kinetic friction between the box and the incline is 0.5?

asked by Sally on January 27, 2015
20. ## Calculus

A tank in the shape of a right circular cylinder is filled with water (62.5 lb/ft3). It has a height of 8 ft and a diameter of 10 ft. How much work is required to pump all the water to a spout that is 3 ft above the top of the tank?

asked by ANON on July 18, 2016
21. ## Physics

A 51-kg packing crate is pulled with constant speed across a rough floor with a rope that is at an angle of 34.0° above the horizontal. If the tension in the rope is 115 N, how much work is done on the crate to move it 9.7 m

asked by Cookies on July 14, 2010
22. ## 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?

asked by Susie on February 20, 2017
23. ## 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?

asked by Susie on February 20, 2017
24. ## Physics Can you please get me started

In a running event, a sprinter does 5.5 105 J of work and her internal energy decreases by 8.8 105 J. Determine the heat transferred between her body and surroundings during this event. ________ J

asked by amela on November 29, 2012
25. ## chemistry

The change in internal energy for the combustion of 1.0 mol of octane at a pressure of 1.0 atm is 5084.3kJ. if the change is enthalpy is 5074.1kJ, how much work is done during the combustion?

asked by Anonymous on February 20, 2011
26. ## physics

In a running event, a sprinter does 5.5 105 J of work and her internal energy decreases by 8.8 105 J. Determine the heat transferred between her body and surroundings during this event. ________ J

asked by amela on November 29, 2012
27. ## Science

Calculate the work done in each of the following situations. a) A horse pulls a wagon with a force of 1200 N and moves it 15 m. b) A cable lifts an elevator 16 m by using a cable with a tension force of 2500 N.

asked by Annie on June 5, 2014
28. ## physics

On his way off to college, Russell drags his bag 15.0 m from the door of his house to the car at a constant speed with a horizontal force of 95.0 N. How much work does Russell do to overcome the force of friction?

asked by april on February 4, 2009
29. ## physics

A 1000 kg car is initially at rest. If the motor does 10,000J of work on the car, what is the car’s final speed? (Neglect friction, and assume that the car is on level ground.)

asked by mable on December 12, 2016
30. ## Chemistry

Calculate the heat capacity of a sample of radiator coolant if a temperature rise from 5 to 107℃ requires 932 J of heat. My work: c=q/mΔT c=932J/(?)(107℃-5℃)

asked by leana on October 1, 2016
31. ## physics

A mother pulls her two children on a sled through the snow along a flat street. How much work is done if she pulls her children 100 feet with a constant force of 40 pounds at an angle of 28°?

asked by Gabby on June 6, 2014
32. ## Calculus

Check my work please? Determine if f(x)= (x^2-3x+2)/(1+x^2) has a horizontal asymptotes. If so, give the equation. So I took x^2 and divided everything by it. (x^2/x^2)-(3x/x^2)+(2/x^2) / (1/x^2)+(x^2/x^2) Cancelled out some x's and have -(3/x)+(2/x^2) /

asked by Greg on September 14, 2012
33. ## Physics

A basketball player throws a 1.2 kg ball 15 meters into the air. What is the increase in potential energy? What is the work done by the player? Is the answer the same for each, because I'm getting the same answer but I feel like something is wrong... 176J

asked by mssailormouth on June 18, 2019
34. ## math

A real estate agent received a 2.5% commission on the sale of a home. If the home sold for \$259,000, how much was his commission? We will be happy to critique your work or thinking.

asked by veronica on May 7, 2007
35. ## Algebra 1

Emily wants to buy turquoise stones on her trip to New MExico to give to at least 4 of her friends. The gift shop sells stones for either \$4 or \$6 per stone. Emily has no more than \$30. I have no clue how to work this out!!!

asked by Austin on September 20, 2011
36. ## physics

A skier of mass 65.0 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 57.0 m up a 35° slope (assumed to be frictionless) at a constant speed of 2.0 m/s? J

asked by Anonymous on January 5, 2011
37. ## calculus

A tank in the shape of a right circular cylinder is filled with water (62.5 lb/ft3). It has a height of 8 ft and a diameter of 10 ft. How much work is required to pump all the water to a spout that is 3 ft above the top of the tank?

asked by ANON on July 18, 2016
38. ## Calculus

A tank in the shape of a right circular cylinder is filled with water (62.5 lb/ft3). It has a height of 8 ft and a diameter of 10 ft. How much work is required to pump all the water to a spout that is 3 ft above the top of the tank?

asked by ANON on July 17, 2016
39. ## chemistry

an engine operating between 100 degree celsius and 0 degree celsius takes 453.6 k cal of heat. The usefull work done by it is ? plz teach me the way of calculating it

asked by star on June 3, 2012
40. ## Trig

Find the exact value of sinx/2 if cosx = 2/3 and 270 < x < 360. A)1/3 B)-1/3 C)sqrt 6/6 D)-sqrt 6/6 C, since I KNOW cosx is always positive but I don't know the work involved. I know the half angle formula

asked by Jon on February 15, 2008
41. ## physics help!!!

What is the minimum work needed to push a 900 kg car 460 m up along a 17.5° incline? (a) Ignore friction. (b) Assume the effective coefficient of friction retarding the car is 0.30?

asked by greg on November 17, 2009
42. ## mgt 435

Compare and contrast two organizations within a particular industry and discuss how and why one organization kept pace with comsumer expectations and the other organization did not. I'm not looking for someone to do the work for me but what I am looking

asked by Anonymous on April 20, 2011
43. ## com 215

Discuss how your would approach creating a negative message for a superior ( such as a manager at work or and instructor) versus creating a message for a colleague, subordinate, or fellow student

asked by attivia on October 21, 2007
44. ## Physics

A child who has a mass of 17 kg slides down a slide from a height of 3.3 m. If friction does a non-conservative work of -143 J, what is the speed (in m/s) of the child at the bottom of the slide? The acceleration due to gravity is 9.81 m/s2

asked by Fallon on April 29, 2010
45. ## Physics

A train slows from 25m/s to 14m/s in 5.0s. Calculate the work done on the train....so I calculted the displacement and the force and put them together to get an answer of 5.0 x 10^7J, but my textbook says it should be 1.1 x 10^7J? Am I right, or is the

asked by Alexis on October 14, 2007
46. ## physics

A worker pushed a 34.0-kg block 10.0 m along a level floor at a constant speed with a force directed 39.0° below the horizontal. If the coefficient of kinetic friction is 0.20, how much work did the worker do on the block?

asked by student on October 28, 2010
47. ## Math

I need to find the inverse function of f(x)=sqrt(x^2+2x), where x>o This is as far as I got: x=sqrt(y^2+2y) How in the world am I going to isolate for y? Should I complete the square underneath the square root symbol, and then use the quadratic equation?

asked by Anne on January 25, 2011
48. ## Physics

A skier of mass 67.0 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 59 m up a 32° slope (assumed to be frictionless) at a constant speed of 2.0 m/s?

asked by Ben on November 20, 2014
49. ## math

i have another question as well.. square root of 3x=x-6..thanks i got an answer that doesnt work out os if u could jus help me out on these thx :) I would square both sides first so you have 3x = x^2 - 12x + 36. Then subtract 3 on both sides so you have

asked by joe on January 9, 2007
50. ## math221

consider situations in your work or home that could be addressed through a continuous probability distribution. Describe the situation and the variables, and determine whether the variables are normally distributed or not. How could you change these to a

asked by Faithee on October 4, 2015
51. ## chemistry

How could you use a precipitation reaction to separate the following pair of cations: K^+ and Hg2 ^2+? (write the formula and net formula for each reactant)? The answer is Hg2 ^2+ (aq) + 2Cl- (aq) = HgCl2(s) but how do I work it out?

asked by Lydia on October 7, 2012
52. ## physics

A box slides down a 30.0 degree ramp with an acceleration of 1.25m/s². Determine the coefficient of Kinetic friction between the box and the ramp. I'm not sure to work it out I draw a picture to see if it would help me but I'm still stuck..

asked by Mindy on November 30, 2015
53. ## physics

explain to me how Wx = Wsintitha instead of Wcostitha. P= Wx + F where F= FRICTIONAL FORCE W= weight component along the plane(Wsintitha) P= force applied The topic is Work,Energy and Power in physics?

asked by poppy👌🤔 on May 2, 2019
54. ## ap physics

A skier of mass 70.5 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 60 m up a 38° slope (assumed to be frictionless) at a constant speed of 2.0 m/s?

asked by shanster on March 14, 2010
55. ## math

You have several 5x11 rectangles, using only these rectangles, what can you make? A) 39x54 rectangle? B) a 39x55 rectangle? Plz help my parents are at work and sisters are doing homework, I'm 9 help!!! ( math due tomorrow!! )

asked by RIZ on September 11, 2014
56. ## Physics

A skier of mass 73.5 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 58 m up a 32° slope (assumed to be frictionless) at a constant speed of 2.0 m/s?

asked by Elizabeth on April 11, 2011
57. ## Physics

Diego pulls a 4.5 kg sled across level snow with a force, F, of 200 N on a rope that is 35.0° above the horizontal, as shown in Figure 10-18. If the sled moves a distance of 63.6 m, how much work does Diego do?

asked by Lisa on April 14, 2011
58. ## Science

A child uses 168 J of work pulling a wagon 25 m up a hill. What is the force exerted on the wagon by the child? (Record your answer to the correct number of significant digits)

asked by Hanny on May 3, 2016
59. ## Calculus 1

On the graph of f(x) = 8*sin(3pi*x), points P and Q are at consecutive lowest and highest points with P occurring before Q. Find the slope of the line which passes through P and Q. Slope = ? I have tried 48/pi and it didn't work

asked by Joshua on January 23, 2014
60. ## Physics

A child uses 168 J of work pulling a wagon 25 m up a hill. What is the force exerted on the wagon by the child? (Record your answer to the correct number of significant digits)

asked by Hanny on May 3, 2016
61. ## Physics

A skier of mass 74.5 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 55 m up a 31° slope (assumed to be frictionless) at a constant speed of 2.0 m/s?

asked by Angela on October 14, 2012
62. ## physics

A student has six textbooks, each with a thickness of 3.6 cm and a weight of 38 N. What is the minimum work the student would have to do to place all the books in a single vertical stack, starting with all the books on the surface of the table?

asked by Anonymous on November 22, 2011
63. ## Physics

A sample of helium behaves as an ideal gas as it is heated at constant pressure from 273 K to 353 K. If 25.0 J of work is done by the gas during this process, what is the mass of helium present?

asked by Sean on May 13, 2011
64. ## Math

If the total cost function for producing x lamps is C(x) = 90 + 36x + 0.1x^2 dollars, producing how many units will result in a minimum average cost per unit? PLEASE EXPLAIN YOUR WORK Thank you

asked by Tom on March 9, 2015
65. ## physics

A student has six textbooks, each with a thickness of 3.6 cm and a weight of 38 N. What is the minimum work the student would have to do to place all the books in a single vertical stack, starting with all the books on the surface of the table?

asked by Anonymous on November 22, 2011
66. ## Maths B

Hi, i was just wondering if you could help me with how to work out this question, as i have attempted and get a bit confused at the end. here it is: A cylinder is inside a sphere- the sphere has a radius of R. What is the maximum volume of the cylinder?

asked by Jess on November 2, 2010
67. ## Equilibrium

2 SO2(g) + O2(g) 2SO3(g) Initially, 1.6mol SO3 is placed in a 3.0L container. At equilibrium, [O2] = 0.15M. What is the value of Keq? A. 0.26 B. 1.2 C. 4.0 D. 43 My work: ...2SO2...+...O2......2SO3 I 0.53M.....-----.........----- C

asked by Jessica on November 13, 2014
68. ## business english

Investors and their wives" is considered sexist because: a. investors may be female. b.not all investors are married. c."investors" refers only to women. d. business documents should not mention people's lives outside work. i think its A

asked by clary on June 12, 2015
69. ## Physics

What is the minimum work needed to push a 1050 kg car 460 m up along a 17.5° incline? (a) Ignore friction (b) Assume the effective coefficient of friction retarding the car is 0.30

asked by Jen on October 15, 2009
70. ## Physics

A student has six textbooks, each with a thickness of 4.8 cm and a weight of 26 N. What is the minimum work the student would have to do to place all the books in a single vertical stack, starting with all the books on the surface of the table?

asked by Anonymous on October 4, 2012
71. ## Math

What is the approximate length of the diagonal of a square if the perimeter of the square is 12ft? a. 1.7ft b. 3.5ft c. 4.2ft d. 12.7ft and how?I was confused on this question I tried to subtract and divide but nothing work.

asked by Sherkyra on October 27, 2010
72. ## chemistry

I am trying to work out the abbreviated structure formula of the products of the complete hydrolysis of tocainde together with any new functional groups formed. I am somewhat stuck and have got only as far as identifying the functional groups in tocaine.

asked by layla on March 9, 2007
73. ## physics

An 8.4 g bullet is accelerated in a rifle barrel 45 cm long to a speed of 1020 m/s. Use the work-energy theorem to find the average force exerted on the bullet while it is being accelerated.

asked by Bob on October 7, 2011
74. ## physics

Using the inverse-square gravitational law, calculate the work required to lift a 1000-kg satellite from the earth's surface to an altitude of 100 mi and inject it into orbit at 17,500 mph. How long would a 300-hp engine have to be run to produce this much

asked by paul smith on July 10, 2011
75. ## college stats

in a sample of 159,949 first year college students, the national survey of student engagement reported that 39% participated in community service or volunteer work.find the margin of error for 99% confidence. what formula do I use? I know the 99% interval

asked by hershi on December 5, 2013
76. ## Physics

A box of mass m and initial speed v0 slides distance d across a horizontal floor before coming to rest. Use work and energy to find an expression for the coefficient of kinetic friction.Express your answer in terms of the variables v0, d, and free fall

asked by Dib on November 8, 2014
77. ## Geography

Employment opportunities were limited in Tijuana. Manuel, who had been unemployed for several months, decided to join a group of people traveling north to find work. What concept is described by the paragraph above? a)population growth b)urbanization

asked by george on December 15, 2009
78. ## Math,Science,Algebra,Geography

the personality type theory that gives people codes based on their levels of four traits, including sensing-intuition or making of thinking-feeling is called the? A.)Holland Code B.)Myers-briggs C.)Beblin Roles D.)Team Work Profiles

asked by DJ on September 30, 2015
79. ## Social Studies

What triggered China's 1899-1901 Boxer Rebellion? a. A prolonged famine that had killed thousands of Chinese b. The presence of westerners*** c. The imprisonment of university professors d. The government's massacre of a village's peasants Just checking my

asked by Kaai97 on October 27, 2015
80. ## English

Okay, this is the work I have done so far. I need to know whether I'm doing this correctly or not. Please tell me wheather they are correct or not. 1. Who is that man? 2. Who made the first moon landing? 3. Whom did the instructor invite to speak to the

asked by Larry on November 18, 2008
81. ## Spanish

Which theory was developed based on observations made on the Galapagos Islands? a. big bang b. natural selection*** c. relativity d. planetary motion Where is the best place to put the adjective "perezoso" in the following sentence? Diego(1) es(2) un(3)

asked by Kaai97 on October 9, 2015
82. ## Social Studies

What Soviet Union leader cut ties with China after a heated discussion with Mao Zedong over Communist ideologies? a. Josef Stalin b. Vladimir Putin c. Mikail Gorbachev d. Nikita Khrushchev*** Just checking my work:) *** - My Answer Thanks, Kaai97

asked by Kaai97 on October 27, 2015
83. ## Geography

Employment opportunities were limited in Tijuana. Manuel, who had been unemployed for several months, decided to join a group of people traveling north to find work. What concept is described by the paragraph above? A)population growth B)urbanization

asked by george on December 15, 2009
84. ## vocabulary

Select the letter of the answer that gives the correct meaning of the underlined word, based on its context. After years of frustration, the social worker began to feel that her work to eliminate homelessness was a (visionary) task. A. noble B. superficial

asked by anthony on May 16, 2011
85. ## english

Can someone check my work for me, please. 1.Yesterday he was very busy since he had been fixing the TV from noon. 2. He left for the day before I arrived. He had been waiting for me almost a week. To regret, I couldn't come earlier. 3. When Anna entered

asked by maria on December 1, 2013
86. ## world geography

Employment opportunities were limited in Tijuana. Manuel, who had been unemployed for several months, decided to join a group of people traveling north to find work. What concept is described by the paragraph above? a)population growth b)urbanization

asked by ty washington on October 27, 2014
87. ## English

11. From which of the following lines can readers infer that Marge Piercy, the poet who wrote "To Be of Use," views hard work as an activity that is worthwhile? A. "the black sleek heads if seals" B. "bouncing like half-submerged balls" C. "who do what has

asked by Dude on May 23, 2017
88. ## Check my work

Peter is creative and excels with visual presentation. He enjoys working in small groups and in an active work environment. Which jobs would match his personality? Select two that apply a. Business manager**** b. Chef c. Painter d. Waiter e. Software

asked by Sid.V on September 18, 2018
89. ## Trigonometry

A point on the rim of a wheel of unknown radius in a pulley system has a velocity of 16 in/min. The wheel is making 4 rpm. If the radius of the other wheel is 8 inches, find the 8" wheel's rpms and the unknown wheel's radius. I got a radius of about 0.637"

asked by MB on February 13, 2017
90. ## Chemistry

A) A compound distributes between water (solvent 1) and benzene (solvent 2) with Kp = 2.7. If 1.0g of the compound were dissolved in 100mL of water, how much compound could be extracted by three 10-mL portions of benzene? B) If the value of Kp is 0.5 for

asked by Anonymous on July 18, 2012
91. ## algebra

A rancher is putting up a rectangular electic fence to contain some horses. The rancher has 1200 feet of electric wire. The fence needs to be at least 120 feet in one direction in order to contain the barn. Which system of linear equalities describes the

asked by letes on May 4, 2010
92. ## Chemistry

A balloon filled with 0.01 mol of hydrogen gas is kept constant at 25 degrees Celsius. If the pressure is increased from 1atm to 1.5atm, what is the resulting volume? _______________________________________ C3H8(g) + 5 O2(g)-->3 CO2(g) + 4 H2O(g) A 0.03

asked by Muffin on December 21, 2006
93. ## chemistry

1. name the three fundamental particles present in an atom? mention the masses of the particles in M.K.S. system? 2.what is a proton? stste its relative mass and charge? 3.how many times a proton is heavier than an electron? 4.what important information

asked by pooja on May 4, 2012
94. ## Science

how is the electricity in our light bublbs formed. Ex. buring coal?????? Electricity is attracted to the wires of the light so it is attracted to the bulb Huh? Electricity is generated by spinning the rotor inside a generator. the rotor (called this

asked by Gina on December 19, 2006
95. ## Physics

There is a door that is 1.0 m wide and can rotate about a vertical axis without friction. The door’s mass is 15 kg and is free to swing open. Someone fires a 10 g bullet at 400 m/s into the exact center of the door, perpendicular to it. Find the angular

asked by Andrea on December 2, 2012
96. ## Criminology/Sociology

My instructor wants me to prepare 15 questions to use to interview a fellow student with so that he can show us how to build a profile on a person based on the answers to the questions. When I asked what type of questions, he said questions like

asked by Lynda on September 14, 2008
97. ## Physics

A large pendulum with a 200-lb gold-plated bob 12 inches in diameter is on display in the lobby of the United Nations building. Assume that the pendulum has a length of 78.4 ft. It is used to show the rotation of the Earth - for this reason it is referred

asked by Madison on April 26, 2015
98. ## Math

What kind of graph would you use to show the number of twins born each year? I think a line graph Would you use a line plot or bar graph to display a survey of what teens do for entertainment after school? I think line plot