Hi there!
Answer:
Total cost with gasoline : $ 62.50
Total cost with E85 : $63.33
Explanation:
First, we must calculate the consumption in gallons of each type of fuel.
For gas
500 miles/28 miles * 1 gallon = 17.86 gallons
For E85
500 miles/22.5 miles * 1 gallon = 22.22 gallons
With that, all we have to do is calculate the total cost in dollars .
For gas
17.86 galons * $3.5/gallon = $62.50
For E85
22.22 galons * $2.85/gallon = $63.33