(Appendix) Janet Terwilliger is a college student and has set a budget of $120 per month for food. She wants to get a certain level of nutritional benefits from the food she has selected to buy. The following table lists the types of food she may buy, along with the nutritional information per serving of that food.

Write the objective function and constraints to minimize the cost and yet meet the recommended daily nutritional allowances.

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Carbohydrates Protein Potassium Calories Cost 38 g. 10 g. -0- 500 $3.99 Pizza 1 g. 13 g. -0- 60 1.29 Tuna 35 g. 7 g. 120 mg. 190 0.93 Cereal Macaroni & cheese 23 g. 3 g. 110 mg. 110 2.12 Spaghetti 42 g. 8 g. 100 mg. 210 3.42 Recommended daily allowance 50 g- 10 g- 100 mg. 2,000