math help

Popular questions
  1. Math help

    You roll a standard, six sided number cube. what is the probability of rolling a prime number or a number greater than 2.

    asked by Roonie on May 19, 2014
  2. Math help

    1. Find the measure of

    asked by Princess Anna on January 28, 2014

    Which of the following is true of the data set represented by the box plot? box plot with point at 16, min at 33, Q1 at 40, median at 52, Q3 at 55, max at 78, and point at 86 The greatest value in the set is 79. The data is evenly distributed throughout

    asked by Oscar on February 10, 2016

    A store had 250 bottles of water. Each week, 40% of the bottles were sold and 48 new bottles arrived in shipments. Which recursive function best represents the number of bottles of water in the store, given that f(0) = 250? f(n) = f(n − 1) ⋅ 0.6 + 48,

    asked by Oscar on September 9, 2015
  5. Math HELP

    The table below shows the measured dimensions of a prism, and the maximum and minimum possible values based on the greatest possible error. Dimensions l w h Measured 9 5 3 Maximum 9.5 5.5 3.5 Minimum 8.5 4.5 2.5 a. Find the measured volume. b. Find the

    asked by Stephen on November 19, 2010

    Joseph borrowed a book from a library. The library charged a fixed rental for the book and a late fee for every day the book was overdue. The expression below shows the charges Joseph paid for the book when he returned it x days after the due date: 2 +

    asked by Oscar on January 27, 2016

    Match the sequence (term) with the correct type of sequence (definition). Match Term Definition 128, 32, 8, 2, ... A) Geometric, common ratio is 0.25 1, 3, 9, 27, ... B) Arithmetic, common difference is 5 5, 10, 15, 20, ... C) Geometric, common ratio is 3

    asked by Oscar on September 9, 2015
  8. Math HELP

    #1 find the value of x if RS = 4(x-3)+6 and RT = 5(2x-6). x= 12 x= 6 x= 4*** x= 3 #2 which of the following statements are always true? Choose all that apply. If the circumcenter of a triangle lies on the triangle, then the triangle is a right triangle.

    asked by Tony on October 16, 2018

    When the outliers are removed, how does the mean change? dot plot with 1 on 50, 1 on 76, 1 on 78, 2 on 79, 1 on 80, 1 on 81, 2 on 82, 1 on 83 The mean decreases by 3. The mean increases by 2. The mean increases by 3. There are no outliers.

    asked by Oscar on February 10, 2016
  10. math help

    The total saving in purchasing 30 13-cent lollipops for a class party at a reduced rate of $1.38 per dozen is: (A) $0.35 (B) $0.38 (C) $0.40 (D) $0.45 (E) $0.50 (F) $0.55 not just answer

    asked by Tomas on August 8, 2013

    The cost to produce a product is modeled by the function f(x) = 5x^2 − 70x + 258 where x is the number of products produced. Complete the square to determine the minimum cost of producing this product. 5(x − 7)^2 + 13; The minimum cost to produce the

    asked by Oscar on February 16, 2016

    1. Which ratios form a proportion? Use equivalent ratios to test each pair. A. 4/9, 2/3 B. 6/15, 9/12 C. 12/16, 15/20 D. 18/ 20, 24/30 2. Which ratio forms a proportion with 20/30? Use equivalent ratios to test each ratio. A. 16/24 B. 10/20 C. 17/51 D.

    asked by goldensparklegirl222 on November 24, 2015
  13. Math Help

    In a certain state, each automobile license plate number consists of two letters followed by a four-digit number. To avoid confusion between "O" and zero and between "I" and one, the letters "O" and "I" are not used. How many distinct license plates can be

    asked by Keith on April 23, 2015

    Sam and Harry are family. Sam is currently is three times Harry's age. Sam's age is also 10 more than twice Harry's age. What are their current ages? Sam is 24 years old, and Harry is 8 years old. Sam is 39 years old, and Harry is 13 years old. Sam is 27

    asked by Oscar on December 20, 2015

    Which of the following questions is a statistical question? What is the top-selling board game? In what aisle are the board games located in the local store? How many board games require a deck of cards to play? How many board games have you played in the

    asked by Oscar on January 28, 2016

    Maggie and her friends are each able to recruit a certain number of people each year to sample a product. The number of people per year is represented by the function f(t) = 3(2)t. What does the t represent? How many people were recruited in year 6? t

    asked by Oscar on December 19, 2015
  17. MATH help

    Which of the following statements is true? A . The dependent variable is represented on the x-axis. B . The independent variable is also know as the output. C . The dependent variable is represented in the 2nd column of a table. D . The independent

    asked by Miranda Lambert on January 12, 2016

    Which of the following statements best describes the graph of 4x − y = 1? It is a straight line joining the points (0, −1), (1, 3), and (−1, −5). It is a straight line joining the points (4, −3), (−1, 2), and (−4, 5). It is a curve joining

    asked by Oscar on December 20, 2015
  19. math help

    on a drive through allegheny county, natalie drove due west for 9 miles, then turned left and proceeded to drive due south. after traveling 12 miles south, what was the straight line distance between where natalie started and where she ended her drive?

    asked by Anonymous on August 29, 2011
  20. math help

    find a set of parametric equations for the line through the point and parallel to the specified vector. (1, -8, -3), parallel to (-1, 6, -6) find symmetric equations for the line through the point and parallel to the specified vector. (5, -2, -4), parallel

    asked by ellora on September 2, 2016
  21. Math help

    You buy 3 pounds of organic apples for $7.50. The graph shows the price for regular apples. What is the unit rate for each type of apples?

    asked by Mr.Brain on May 2, 2013
  22. math help

    Could someone tell me how to find the inverse of g(x)= x^2-5x-6

    asked by Mae on January 25, 2009

    Write the equation of the line that passes through the points (3, 6) and (4, 10) using function notation. f(x) = 4x − 6 f(x) = x + 4 y = x + 4 y = 4x − 6

    asked by Oscar on October 28, 2015

    A school puts on a play. The play costs $1,200 in expenses. The students charge $4.00 for tickets. There will be one performance of the play in an auditorium that seats 500 people. What is the domain of the function that shows the profit as a function of

    asked by Oscar on September 8, 2015
  25. Math help

    Stock in Company XYZ decreased from $14 per share to $9 per share. What is the percent decreased in the stock price?

    asked by Singi on July 27, 2016
  26. math help

    The perimeter of triangle RXA is 39, PX=4 and AP=9.Find RX and RA. P is at the middle. I think it's under triangle bisector theorem. Help me answer this guys. Thanks

    asked by jude on February 18, 2015
  27. math help

    Round to nearest ten thousandth: 4.803621

    asked by Sara on January 22, 2014
  28. Math Help

    Math unit test. (1) write the fraction 1/8 as a percent. round to the nearest hundredth of a percent where necessary. 12.50% 37.50%**** 62.50% 80.00%

    asked by Jimmy on December 15, 2016
  29. math help

    A piece of rectangular paper measures 8x by 12x. If a circle with a radius of 3x is cut out of the middle of the paper, what will be the area of the remaining piece of paper in terms of π? 3. A rectangular gazebo measuring 7x by 9x is built in the middle

    asked by XenaGonzalez on March 21, 2016

    When the function f(x) = 4(2)^x is changed to f(x) = 4(2)^x − 13, what is the effect? There is no change to the graph because the exponential portion of the function remains the same. The x-intercept is 13 spaces higher. The y-intercept is 13 spaces

    asked by Oscar on December 17, 2015

    3. If a number is not a rational number, then it is _____. (1 point) an integer an irrational number a whole number a radical*** 4.Mrs. Clarkson designed a rectangular garden with a length of 15 meters and a width of 8 meters. She plans to build a walkway

    asked by Anonymous on November 11, 2015
  32. Math help

    A bag of peanuts weighs 1/4 pound. How much do 1 1/2 bags weigh

    asked by Beesly on January 23, 2019
  33. Math Help

    A server purchased at a cost of $108,000 in 2002 has a scrap value of $18,000 at the end of 5 years. Find the linear equation expressing the server's book value at the end of t years. a- V(t)=108,000 b- V(t)=108,000t-18,000t c- V(t)=18,000t+108,000 d-

    asked by Rob on October 17, 2016

    The table shows preferences of dancing or playing sports for male and female students. Do you prefer dancing or playing sports? Playing sports Dancing Row totals Male students 18 . 16. 34 Female students 18. 35 53 Column totals 36 51. 87 Mason mistakenly

    asked by Oscar on February 11, 2016

    The side of a square is Three raised to the five halves power inches. Using the area formula A = s2, determine the area of the square. This is the side of the square in fraction(3^5/2) A = 9 square inches A = 15 square inches A = 225 square inches A = 243

    asked by Oscar on December 17, 2015
  36. math help

    Find the value of X which will make the proportion true:? 6/20 = 78/x 468 120 260 ----- 13

    asked by ttng on August 17, 2015
  37. Math Help

    1.) Use the graph of f to describe the transformation that yields the graph of g. f(x)=10^x g(x)= 10^-x+3 a.) Reflect the graph of f in the y-axis and shift three units to the left. b.) Reflect the graph of f in the y-axis and shift three units to the

    asked by Kalani on November 1, 2014
  38. math help

    A lab assistant wants to make FIVE LITERS of 31.2% acid solution. If solutions of 40% and 18% are in stock, how many liters of each must be mixed to prepare the solution. i don't even know what equation to use or anything, please help me, thank you.

    asked by amy on March 29, 2012
  39. math help

    The number of trucks registered in a city increases by 10% each year. Initially, there were 100 trucks registered. There were 110 trucks registered at the end of Year 1. What is the number of trucks registered in the city at the end of Year 8? how do i

    asked by sammiexo on May 31, 2017
  40. Math Help

    The sale price of shrimp at a local grocery store is $1.15 for the first ounce and $0.95 for each additional ounce. Which function rule shows how the cost of shrimp, y, depends on the number of ounces, x? A.y=1.15x+0.95** B.y=(0.95+1.15)x C.y=0.95x+1.15

    asked by The Weekend on May 16, 2017
  41. Math Help

    A division of a corporation produces "Personal Income Tax" diaries. Each diary sells for $8. The monthly fixed costs incurred by the division are $20,000, and the variable cost of producing each diary is $3. What should be the level of sales in order for

    asked by Robbi on October 19, 2016
  42. Math Help

    the weather forecaster says the planet temperature is 3F. He expects the temperature to fall 5 degrees during the night. How cold will it get? A) 2 F B) -2 F C) 8 F

    asked by Donut🍩 on May 2, 2016

    A soccer ball is kicked toward the goal. The height of the ball is modeled by the function h(t) = −16t2 + 48t where t equals the time in seconds and h(t) represents the height of the ball at time t seconds. What is the axis of symmetry, and what does it

    asked by Oscar on February 15, 2016
  44. MATH help

    Find the area of the following shape. You must show all work to receive credit. Figure ABCDEF is shown. A is located at negative 2, 6. B is located at negative 5, 2. C is located at negative 2, negative 3. D

    asked by flaca on October 28, 2015
  45. math help

    Given that the point ​(5​,3​) is on the graph of an equation that is symmetric with respect to the y dash axis, what other point is on the​ graph my answer is -5,3 is this right??

    asked by mick on October 2, 2015
  46. Math Help

    Two people are selected at random from a group of 6 pilots and 4 engineers. What is the probability that both of them are engineers?

    asked by KiKi on June 11, 2015
  47. Math Help

    A right triangle has a leg B of length 7 and a hypotenuse of length 11. What is the length of the other leg A? Round to the nearest tenth, if necessary. A. 2.0 B. 8.5 C. 13.0 D. 9.6 Please help, I was gone for this lesson, just need someone to explain how

    asked by Matt on March 16, 2015
  48. math help

    Factor f(x) into linear factors given that k is a zero of f(x). f(x)=x^3+(12-4i)x^2+(32-48i)x-128i, k=4i In completely factored form, f(x) =____ (factor completely. simplify your answer)

    asked by Ernie on November 21, 2014
  49. Math Help

    Write the ratio in the simplest form. 16:24 A. 1:2 B. 4:3 C. 3:4 D. 2:3 Is the answer A? Thank you

    asked by callie on November 20, 2014
  50. Math help

    You plan to make 24 equal quarterly payments (payments are at the end of each period) into an account to pays 8% (per year compounded quarterly). If you need $5,000 at the end of 10 years (i.e. 4 years after the last payment is made into the account), how

    asked by Nancy on October 23, 2014
  51. Math help

    The weights of ripe watermelons grown at Mr. Smith's farm are normally distributed with a standard deviation of 2 lb. Find the mean weight of Mr. Smith's ripe watermelons if only 5% weigh less than 18 lb. (Give your answer correct to one decimal place.) lb

    asked by Tom614 on June 12, 2013
  52. math help

    What is the smallest number i must multiply 315 in order to make it a perfect cube? Please tell me the method you sed and how you got the answer. I've been doing guess and check and it is time consuming.

    asked by Farhin on December 4, 2016
  53. Math help

    Find the break-even point for the firm whose cost function C and revenue function R are given. C(x)=0.3x+140; R(x)=0.5x a. P(680)=340 b. P(700)=350 c. P(690)=345 d. P(720)=360 e. P(710)=355 thank you

    asked by Kal Jay on October 18, 2016

    1)What is the simplified form of the following expression? 2x^2y+3x^2+4y+3x^2y+2y A)5x^4y^2+3x^2y+2y B)8x^2y+6y^2 C)5x^2y+3x^2=6y D)14x^2y 2)Simplify the following expression 1/3 (21m+27) A)7m+27 B)7m+9 C)63m+9 D)7m+81 3) What is the sum 7/4+(-1/5) A)31/20

    asked by ASTROLATER on September 21, 2016

    A Lights-A-Lot quality inspector examines a sample of 25 strings of lights and finds that 6 are defective. a. What is the experimental probability that a string of lights is defective? b. What is the best prediction of the number of defective strings of

    asked by Hanna on February 18, 2016
  56. math help

    Model 28% on a 5 x 5 grid. a. a 5 x 5 grid with 4 blocks filled in. b. a 5 x 5 grid with 5 blocks filled in. c. a 5 x 5 grid with 7 blocks filled in. d. a 5 x 5 grid with 20 blocks filled in. I don't know what to do, can someone give me a step-by-step

    asked by Hana on February 3, 2016

    Solve the following system of equations: x − 2y = 6 2x − 4y = 10 Infinitely many solutions No solutions (0, 0) (6, 10) is it A

    asked by Oscar on December 21, 2015
  58. Math Help

    Hello! Can someone please check and see if I did this right? Thanks! :) Directions: Find the exact solutions of the equation in the interval [0,2pi] cos2x+sinx=0 My answer: cos2x+sinx=cos^2x-sin^2x+sinx =1-sin^2x-sin^2x+sinx =-2sin^2x+sinx+1=0

    asked by Maggie on February 2, 2015
  59. Math help

    A boy has 380 prize tickets he wants to exchange for action figures at a prize booth. At this prize booth 5 tickets can be exchanged for a large action figure, and 7 tickets can be exchanged for 2 small action figures. The boy wants 4 times as many small

    asked by Anonymous on December 18, 2014
  60. Math Help

    Find the percent of increase. 50 to 70 A. 20% B. 30% C. 40% D. 50% Is the answer A?

    asked by callie on December 3, 2014
  61. Math Help

    Find the coordinates of quadrilateral V' W' X' Y' after a dilation with the scale factor of 2. Original coordinates: V(6,2), W(-2,4), X(-3,-2), Y(3,-5), scale factor of 2. My answer V'(8,4), W'(-4,6), X'(-5,-4), Y'(6,-6) Am I right? Thank you

    asked by callie on November 20, 2014
  62. math help

    I am a closed shape made of 6 line segments. I have 2 angles less than a right angle and no right angles. What shape am I? Draw an example in the workspace.

    asked by Jennifer on March 19, 2014
  63. Math help

    Write an equation with a variable on both sides of the equal sign that has infinitely many solutions. Solve the equation and explain why it has an infinite number of solutions.

    asked by Katalina on January 14, 2014
  64. math help

    An engineer is required to survey a nonrectangluar plot of land but is unable to measure side UT directly. The followng data are taken; RU=130 meters, RS=12m ST=90m, angle RST=115, and angle RUT=100. Calculate the length of side UT and the area of the

    asked by julie on January 12, 2008
  65. Math help

    In which type of symbiotic relationship is one organism helped while another organism is neither benefitted nor harmed? A: Mutualism B: Predation C: Commensalism D: Parasitism

    asked by Katy on February 20, 2019

    Find the mean of the set of data. If necessary round to the nearest tenth. 17.2, 18.3, 14.9, 16.8, 15.3

    asked by Jaytheyoungblood on February 19, 2019
  67. math help

    The price for an adult carnival ticket is 6.5 more than a carnival ticket for a child. Bob takes his son to the carnival. He buys cotton candy for $10.25, and spends $55. Write and solve a linear equation to find the prices for each of their carnival

    asked by kora on January 23, 2018
  68. math help

    Which represents a reduction? A (x,y) —> (0.9x, 0.9y) B (x,y) —> (1.4x, 1.4y) C (x,y) —> (0.7x, 0.3y) D (x,y) —> (2.5x, 2.5y) 11 Which set of lengths are not the side lengths of a right triangle? A 28, 45, 53 B 13, 84, 85 C 36, 77, 85 D 16, 61, 65

    asked by jomoholocoso on November 30, 2017

    I am trying to work this problem out. I know that the systematic counting principle is used. However, I cannot get the right answer. For the first part, I took R=2 N=6 6!/(6-2)! (Permutation). Answer: 30 choices for the Chair/Vice The second part, I took

    asked by Johnathan (John) on January 18, 2017

    I am trying to work this problem out. I know that the systematic counting principle is used. However, I cannot get the right answer. For the first part, I took R=2 N=6 6!/(6-2)! (Permutation). Answer: 30 choices for the Chair/Vice The second part, I took

    asked by Johnathan (John) on January 18, 2017
  71. Math Help

    I am trying to work this problem out. I know that the systematic counting principle is used. However, I cannot get the right answer. For the first part, I took R=2 N=6 6!/(6-2)! (Permutation). Answer: 30 choices for the Chair/Vice The second part, I took

    asked by John on January 18, 2017
  72. Math help

    At the supermarket, a certain item has increased from 75 cent per pound to 81 cent per bag. What is the percent increase in the cost of the item?

    asked by Singi on July 27, 2016

    Select the polynomial that is a perfect square trinomial. 9x^2 + 9x + 1 36b^2 − 24b + 8 16x^2 + 24x + 9 4a^2 − 10a + 25

    asked by anonymous on February 23, 2016
  74. Math help

    The price of a calculator is $12.50. The sales tax is 7.5%. How much will you pay for the calculator? a. $13.40 b. $13.44 * c. $13.57 d. 13.61 Thank you.

    asked by Soso on February 1, 2016
  75. math help

    Mr. Donahue needs 4 1/2 pounds of flour to make 5 loaves of bread. He bought a 50-pound bag of flour that costs $64.99. About how much will Mr. Donahue spend on flour for a loaf of bread? A $1.17 B $5.85 C $6.50 D $58.49 how is this answer A

    asked by jhon on January 18, 2016

    A consistent system of equations is a system with __________. the same line parallel lines intersecting lines and lines that have the same slope intersecting lines and lines that have the same equation

    asked by Oscar on September 10, 2015
  77. math help

    4,9,x,37 is a quadratic sequence (a)show that x=20 (b)determine the nth term of the sequence thanks in advance

    asked by happy on June 4, 2015
  78. Math Help

    Find a12 for the following geometric sequence. 1/32, 1/16, 1/8,

    asked by Tami on April 21, 2015
  79. Math Help

    Forks:Spoons There are 7 forks and 5 spoons. What's the ratio? Explain what the ratio means. I know what the ratio is its 7:5 right? I just need help on the second one. How do I explain it?

    asked by Zero on December 8, 2014
  80. Math Help

    1.The Census Bureau estimates that in 2025, 20 of 50 states will have a Spanish-speaking majority. What percent of the states will have a Spanish-speaking majority? A. 20% B. 30% C. 40%*** D. 50% 2. What percent of 25 is 10? A. 10=p*25;40% B. 10=p*25;250%

    asked by Callie on December 8, 2014
  81. Math help

    To find the height of a tree, Wyatt places a mirror so that he can see the top of the tree in the mirror. The mirror is 3 ft from him and 7.5 ft from the tree. If Wyatt is 5.5 ft tall, how tall is the tree? How would I solve this?

    asked by Anonymous on December 6, 2014
  82. Math help

    A painter needs to know the height of a building to estimate the amount of paint needed for the front side. When the building cast an 18 ft shadow, the 6 ft tall painter casts a 3 ft long shadow. How tall is the building? Would it be 36 ft?

    asked by Anonymous on December 6, 2014
  83. Math help

    each time old faithful in Yellowstone national park erupts, rangers can estimate the height of the geyser by comparing it to the height of a tree. first the Rangers locate a tree of the same height . the shadow of the tree is 93 feet at the same time that

    asked by Anonymous on December 6, 2014
  84. Math Help

    In 6 months, 33.6 gallons were used. Find the unit rate. A. 3.6 gallons/month B. 4.6 gallons/month C. 5.6 gallons/month D. 6.6 gallons/month Is the answer C? Thank you

    asked by callie on November 20, 2014
  85. math help

    the sum of three consecutive odd integers is 435. What is the largest of the three integers??how do I solve this problem?? Please help

    asked by Anonymous on September 9, 2014
  86. math help

    1. A bag contains red, blue, green, and yellow marbles. Seth takes a marble from the bag without looking, records the color of the marble, and then puts the marble back in the bag. He repeats the process until he has recorded the colors of 35 marbles. The

    asked by may ann on June 6, 2014
  87. math help

    2, 4, 8, 16, 32, 64, , Is 66 and 70 the next two numbers for this pattern?

    asked by trish on January 15, 2014
  88. MATH help

    A box with no top is to be constructed from a piece of cardboard whose Width measures x inch and whose length measures 3 inch more than the width the box is to be formed by cutting squares that measure 1 inch on each side of the 4 corners and then folding

    asked by HM on September 18, 2011
  89. math help

    1.Find the volume of a cube whose sides each measure 3.9. Round answer to the nearest tenth 2.Find the volume of an ellipsoid with a semi-major axis of length 9 and the first semi-minor axis has length of 5 while the second semi-minor axis has length of

    asked by BreAnna on May 13, 2011
  90. Math help

    Losing your bags during airline travel is not all that uncommon. Recently, an airline was cited for losing customers' baggage 8% of the time. A test is conducted by randomly selecting 20 customers for that airline and observing whether they had lost their

    asked by Mariah on December 9, 2010
  91. math help

    At the first tri-city meeting, there are 8 people from town A, 7 people from town B, and 5 people from town C. If a council consisting of 5 people is randomly selected, find the probability that 3 are from town A and 2 are from town B.

    asked by Janet on December 5, 2009
  92. Math Help

    Perform the indicated operations and write the result in standard form 3 sq root -16 + 2 sq root -81

    asked by Mike on October 19, 2007
  93. math help

    make a table and graph some points for each function use -2,-1,0,1,and 2 for x 7. y = x + 2 8. y = x - 2 9. y = 2x 13. suppose a library charges a fine of $0.2 for each day a book is overdue. The function f = 0.25d shows how the number of day d relates to

    asked by i go to wild about cheer on March 18, 2019
  94. Math help

    In 1997 the population of a small town was 700. If the annual rate of increase is about 0.8%, which value below expresses the population five years later? A: 5(700)(0.008) B: 5(700)(1.008) C: (700)(0.008)^5 D: (700)(1.008)^5 Answers to all questions are

    asked by Meja on February 26, 2019
  95. Math Help

    The following table shows the price charged by a local courier company to collect and deliver packages. # of packages Cost ($) 1 15 2 17 3 19 What is the cost to have b packages collected and delivered? Extend the pattern to find the cost of 8 packages

    asked by Veii on December 15, 2017
  96. Math Help

    Look at the following pattern: 5, 8, 11, 14 ... Find the general term

    asked by Vei on December 5, 2017
  97. Math help

    i JUST need help with this question. 16. Elizabeth and Sara were at a carnival. They each got a ticket for the Ferris wheel. Ella got a snow cone, and Margaret got a cotton candy. Ella had a certificate for $5.50 off the cost. Margaret paid the rest, which

    asked by Thili on November 14, 2017
  98. Math help

    Determine the value(s), if any, of k for which the function f(x) = x^3 + 6x^2 + kx -4 gives the same remainder when divided by x − 1 and x + 2.

    asked by Angela on October 15, 2017
  99. Math Help

    An equation is shown below: 4(2x - 5) + 15 = 11 Write the steps you will use to solve the equation and explain each step. Can someone please explain step by step this equation? Thanks!!

    asked by Alex on March 30, 2017
  100. Math HELP

    1. which of the following side lengths will not make a right triangle A. 12, 16, 20 B. 5, 12, 13 C. 6, 17, 20 D. 3.5, 12, 12.5

    asked by ExamplePlease on February 15, 2017


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