Question

A self-serve car wash charges $5.22 to use its facilities, plus an additional $0.84 for each minute the customer is at the self-serve car wash. If Tiffany was at the car wash for 6 minutes, how much was she charged?

Answer 1

$10.26

Explanation:

f(x) = 0.84x + 5.22

f(6) = (0.84 x 6) + 5.22

f(6) = 10.26