Question

Bananas are on sale for $0.50 a pound, and you have a coupon for $0.15 off your total purchase. Write a function rule for the cost, c, of n pounds.

c = 0.5n - 0.15
c = 0.5n
c = 0.5n + 0.15
c = 0.15n - 0.50

Answer 1

The answer is the first one c= 0.5 - 0.15

Explanation:

This is because 0.5 is how much the pound cost and you subtract that by 15 cent because of the coupon.