4.5 qt / min = ____ gal / h

The answer to the question is 67.5 gal/h. 4.5 qt          60 min     1 gal            270 gal----------  * ------------ * ----------- = ------------
   1 min        1 hr             4 qt           4  hr 4.5             60          1 gal            270 gal----------  * ------------ * ----------- = ------------
   1            1 hr             4                4  hrAnswer270 gal/ 4 hr = 67.5 gal/1 hr = 67.5  gal/hr