Answer:
Od 8.8 mpg
Explanation:
Step 1: Calculate the total cost of gasoline for Fred's old car.
15,000 miles/year * 20 mpg = 300,000 miles/year
300,000 miles/year * $3.25/gallon = $975 per year
Step 2: Calculate the total cost of gasoline for Fred's new car.
15,000 miles/year * 8.8 mpg = 132,000 miles/year
132,000 miles/year * $3.25/gallon = $429 per year
Step 3: Subtract the cost of gasoline for Fred's old car from the cost of gasoline for Fred's new car.
$975 - $429 = $546
Step 4: Divide the total savings per year by the cost of gasoline per gallon to calculate the number of miles per gallon the new car gets.
$546 / $3.25 = 8.8 mpg