2. The Munchies Cereal Company makes a cereal from several ingredients. Two of the ingredients, oats and rice, provide vitamins A and 'B. The company wants to know how many ounces of oats and rice it should include in each box of cereal to meet the minimum requirements of 48 mil- ligrams of vitamin A and 12 milligrams of B while minimizing cost. An ounce of oats contributes 8 milligrams of vitamin A and f jni9,igram of vitamin B, whereas an ounce of rice contributes 6 milligrams of A and 2 milligrams of B. An ounce of oats costs $0.05, and an ounce of rice costs $0.03. a. Formulate a linear programming model for this problem. b. Solve this model by using graphical analysis.