using quantitative simplex method solve this

John is the purchasing manager of Velley food that will results on minimum cost. he is able to determine the data necessary for him to make a decision. A gallon of Alaska Milk can produce 5 cases of cheese, 7 cases of butter and 9 cases of cream. A gallon of nestle milk can produce 11 cases of cheese, 8 cases of butter and 4 cases of creams. he must produce at least 110 cases of cheese, 112 cases of butter and 72 cases of cream per day. Alaska milk cost 50USD per gallon while Nestle milk cost 55USD per gallon. How many gallons of Alaska milk and Nestle milk should be purchased per a day to minimize cost and how much is the total cos