Bob, a nutritionist who works for the University Medical Center, has been asked to prepare special diets for two patients, Susan and Tom. Bob has decided that Susan's meals should contain at least 370 mg of calcium, 19 mg of iron, and 52 mg of vitamin C, whereas Tom's meals should contain at least 320 mg of calcium, 14 mg of iron, and 42 mg of vitamin C. Bob has also decided that the meals are to be prepared from three basic foods: Food A, Food B, and Food C. The special nutritional contents of these foods are summarized in the accompanying table. Find how many ounces of each type of food should be used in a meal so that the minimum requirements of calcium, iron, and vitamin C are met for each patient's meals. Contents (mg/oz) Calcium Iron Vitamin C Food A 30 1 2 Food B 25 1 5 Food C 20 2 4 Susan's meals: Food A 15.5 xoz Food 8 61.7 x oz Food C 15.4 x oz Tom's meals: Food A 15.5 02 Food B 47 Xoz Food C 1.9 Xoz Δ