Question

Benito spent $1578 to operate his car last year. Some of these expenses are listed below. Benito's only other expense was for gasoline. If he drove 8255 miles, what was the average cost of the gasoline per mile?
Operating Expenses
Insurance $946
Registration $140
Maintenance $85

Answer 1

Benito's expenses for the gasoline is 
$1578-946-140-85=407$

The cost of the gasoline per mile is
$407/8255=0.05$ which is 5 cents