Question

At an airport, its costs $7 to park for up to one hour and $5 per hour for each additional hour. Let x represent the number of hours parked. Write a function that models the cost, C(x), of parking x hours, where x is an integer greater than 1.
A: C(x)=5x+12
B: C(x)=5(x+1)+7
C: C(x)=5(x-1)+7
D: C(x)=5x+7

Answer 1

the answer would be C

 because it is taking the total hours ( x) and subtracting 1 ( the first hour that cost $7

and then multiplying x by the $5 per minute and then adding the $7 for the first hour