I think 4.47 is a a rational number
1 gallon of gas for William= 37.76 ÷ 16= 2.36 $
1 gallon of gas for Regina= 14.64 ÷ 6= 2.44 $
so william got a better deal per gallon.
The team gained a total of 3 yards. That is because they first gained 8 (0 + 8), then lost 3 (8 - 3).