Calculate gross profit when there's 20 cows(milk) 50,000 gallons and market price is $2.50 per gallon, 30 sheep (wool) 900 pounds market price $3.50 per pound, 40 chickens (eggs) 1023 dozen market place $2.96 per dozen, 100 acres corn 13,000 bushels market price at $3.48 per bushel, 100 acres wheat 3,700 bushels market price at $9.23 per bushel, 100 acres soybeans 6,600 bushels market price at $4.00 per bushel, 5 acres of peaches 2,700 bushels market price at $28.00 per bushel.

Your vet has placed your pet on a diet. the diet is to contain at least 12 mg of fat and at least 14 mg of protein per serving. these requirements are to be obtained from two food sources. source a contains 2 mg of fat and 2 mg of protein per serving. source b contains 1 mg of fat and 3 mg of protein per serving. if source a sells for $1.28 per serving and source b sells for $1.12 per serving, how many servings of each type should be purchased to satisfy the requirements at minimal cost?