We want to find miles per gallon. Another way of saying miles per gallon is miles/gallon. So we will plug the numbers into this equation:
60 miles/3 gallons = 20 miles/gallon
This is because 60/3=20.
I hope this makes sense.
Answer:
D is the answer. There are 5 boxes, that each has 3 filled in.
Answer:

Step-by-step explanation:





5x^2y
5 is the largest number to go in evenly. And the terms are limited to those.