All computers are on sale for 10% off the original price. if x is the original price of the computer, then the function that represents the price after only a 10% discount is: p(x) = x - 0.1x p(x) = 0.9x the function that gives the price, c, if only a $150 coupon is used is: c(x) = x - 150 choose the composition function that gives the final sale price after a 10% discount is followed by a $150 coupon. c(p(x)) = 0.9x – 150 p(c(x)) = 0.9x – 150 c(p(x)) = 1.9x – 150 p(c(x)) = 1.9x – 150

As a project for math class, two students devised a game in which 3 black marbles and 2 red marbles are put into a bag. first the players must decide who is playing black marbles and who is playing red marbles. then each player takes a turn at drawing a marble, noting the color, replacing the marble in the bag, and then drawing a second marble and noting the color before returning it to the bag. the point scheme for the game is detailed in the table below. point values for marble game black marble points red marble points both black: +2 points both red: +4 points different colors: –1 point different colors: –1 point both red: 0 points both black: 0 points