Answer:
20.4 miles per gallon
Explanation:
First, we need to know the number of miles between 21,373.8 and 21,771.6, so the difference is equal to:
21,771.6 - 21,373.8 = 397.8
Now, we know that the van got 397.8 miles with 19.5 gals, so to know the number of miles per gallon, we need to divide 397.8 by 19.5:
[tex]\frac{397.8\text{ miles}}{19.5\text{ gals}}=20.4\text{ miles per gallon}[/tex]Therefore, the van got 20.4 miles per gallon
