Cost per gallon of gasoline = $3.95 per gallon.
Total number of gallons of gasoline Mr.Endo buys = 13.6 gallons.
We need to find the total cost of 13.6 gallons of gasoline.
In order to find the total cost of 13.6 gallons of gasoline, we need to multiply it by cost of each gallon of gasoline.
Therefore, cost of 13.6 gallons of gasoline = 13.6 × 3.95
On multiplying 13.6 by 3.95, we get 53.72.
