Suppose tuna is on sale for $0.90 a can, and you have a coupon for $0.40 off your total purchase. Write a function rule for the cost of n cans of tuna.
(1 point)
Responses
a. C(n) = 0.90n – 0.40
b. C(n) = 0.40n – 0.90
c. C(n) = (0.90 + n) – 0.40
d. C(n) = (0.40 + n) – 0.90
1 answer
a. C(n) = 0.90n - 0.40