Jared drives 421.6 miles on one tank of gasoline. Calculate his fuel efficiency in miles per gallon. Round to the nearest tenth of a mile per gallon.
1 tank = 5' * 6' * 8' = 240 cu ft. = 240*7.4805 gallons /cu ft =1795 gallons
1795 gallons can be for 421.6 miles
1 gallon =421.6/1795 =0.234875 miles per gallon + 0.23 mi per gallon
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