240 miles
Explanations:The cost of rent = $25
The charge per mile = $0.15
Let the number of miles be represented by x
The total bill = $61
Total cost = (Cost of rent) + (Charge per mile)(Number of miles)
61 = 25 + 0.15x
61 - 25 = 0.15x
0.15x = 36
x = 36/0.15
x = 240
I drove 240 miles
