Question

Trevor bought 8 gallons of paint to paint his house he use all but one quart how many quarts of paint did you ever use

Answer 1

Trevor used 31 quarts because in 1 gallon there is 4 quarts 4x8 equals 32

32-1 equals 31
there's your answer. :)

Answer 2

8 gallons = ? quarts
1 gallon = 4 quarts

Convert:-

4 × 8 = 32
8 gallons = 32 quarts

Trevor used all the quarts besides 1. How many quarts of paint did he use?

32 - 1 = 31

Trevor used 31 quarts of paint.