if trevor drives 225 miles and gasoline costs 2.379 per gallon,how much will it cost him?

Given:
if Trevor drives 225 miles
From the shown figure, to drive 225 miles he will use about 15 gallons
Given: the gasoline costs $2.379 per gallon
so, the total cost = 15 x 2.379 = $ 35.685
So, the answer will be $35.685