A self-serve car wash charges $5.20 to use its facilities, plus an additional $0.66 for each minute the customer is at the self-serve car wash. If Tiffany was at the car wash for 9 minutes, how much was she charged?

answer: haha (: i’ll go see what it is

step-by-step explanation:

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

answer: 1+1

step-by-step explanation: 1+1 is at least 2