A diet is being prepared for the University of Arizona dorms. The objective is to feed the students at the least cost, but the diet must have between 1,800 and 3,600 calories. No more than 1,500 calories can be starch, and no fewer than 600 can be protein. The varied diet is to be made of two foods: A and B . Food A costs $0.72 per pound and contains 1,000 calories, 833 of which are protein and 167 starch. No more than 2 pounds of food A can be used per resident. Food B costs $0.15 per pound and contains 1,300 calories, of which 1,000 are starch, 180 are protein, and 120 are fat. a. Write the equations representing this information. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 2 decimal places.) Z = A + B s.t Calories A + B ≤ Calories A + B ≥ Starch A + B ≤ Protein A + B ≥ Amount of A A ≤