A box is filled with 3 yellow cards, 5 green cards, and 7 red cards. A card is chosen at random from the box. What is the probability that the card is not green

10/15

Step-by-step explanation:

it is 10/15 because you start off by finding the total and so you add 3+7+5 with will give you 15 as a total but your trying to find the probability of not getting green and according to the problem out of those 15 cards 5 of them are green and so you subtract 15-5 and you get 10 so the probability of you not getting green is 10/15.

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation:

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed