Question: A car rental company charges a flat fee of $50 plus $0.20 per mile driven. If a customer paid $70, how many miles did they drive?
Options:
Correct Answer: 100 miles
Solution:
Let the number of miles driven be m. The total cost is given by: 50 + 0.20m = 70. Solving for m gives 0.20m = 20, so m = 100 miles.