9514 1404 393
Answer:
9 quarts
Explanation:
There are 4 quarts in a gallon, so the amount used was ...
used = bought - leftover
used = (7 gal)(4 quarts/gal) - ((4 gal)(4 quarts/gal) +3 quarts)
used = 28 quarts - (16 +3 quarts)
used = 9 quarts
Morris Griffin used 9 quarts of paint to paint his neighbor's house.