Question

Greg lives in a state in which speeders are fined $15 for each mile per hour over the speed limit. Greg received a ticket for $180 for speeding on a road where the speed limit is 45 mph. How fast was Greg driving?
A. 47 mph
B. 55 mph
C. 57 mph
D. 60 mph

Answer 1

Im pretty sure its C

Answer 2

57 mph because
$180 \div 15 = 12$
$12 + 45 = 57$