Adairy company gets milk from two dairies and then blends the milk to get the desired amount of butterfat. milk from dairy i costs $2.40 per gallon, and milk from dairy ii costs $0.80 per gallon. at most $144 is available for purchasing milk. dairy i can supply at most 50 gallons averaging 3.9% butterfat, and dairy ii can supply at most 80 gallons averaging 2.9% butterfat. answer parts a and b.