A deli offers types of donuts and types of bagels. The deli randomly selects a customer to get a free donut or a free bagel. What is the probability that the customer gets a free donut?

answer: a

step-by-step explanation:

if xy ~ yz therefore xy would be the same length as yz

answer: the answer is 35%

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15