400
Alex comes home from the store with his mom. They bought three gallons of milk from the store. Alex tells his mom that they have been learning about conversions in math class, specifically the U.S. Customary System. His mom says that should include quarts, pints, and cups. She asks Alex how many gallons of milk they would now have?
(1 gallon = 4 quarts) (1 quart = 2 pints) (1 pint = 2 cups)
3 gallons