A self-serve car wash charges $5.11 to use its facilities, plus an additional $0.92 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?

A.
$8.28
B.
$13.39
C.
$6.03
D.
$14.11

To calculate how much Tiffany was charged, we need to add the base fee of $5.11 to the additional charge for the time spent at the car wash.

Base fee: $5.11
Additional charge for 9 minutes: $0.92 * 9 = $8.28

Total charge = Base fee + Additional charge
Total charge = $5.11 + $8.28
Total charge = $13.39

Therefore, Tiffany was charged $13.39 at the car wash. The answer is B. $13.39.