Question

36 miles per gallon to miles per quart. (1 gal=4 qt)

Answer 1

since 1 qt is 1/4 of a gallon, you can go 1/4 as far: 9mi/qt

or, using the proper units, get the gallons to cancel:

36 mi/gal * 1gal/4qt = 36/4 mi/qt