Answer:
47.7 gallons
Explanation:
See the attached worksheet. There are four data points that can be used to calculate miles/gallon, the rate of miles driven per gallon of gasoline.
Note that all four data points have the same conversion: 15.4 miles/gallon.
The average is therefor 15,4 miles/gallon. To find the gallons needed for 734.58 miles, divide by the 15.4 miles/gallon:
(734.58 miles)/(15.4 miles/gallon) = 47.7 gallons [Miles cancel and gallons moves to the top).