Set up the objective function and the constraints, but do not solve. Jack has a casserole and salad dinner. Each serving of casserole contains 240 calories, 4 milligrams of vitamins, and 8 grams of protein. Each serving of salad contains 35 calories, 6 milligrams of vitamins, and 1 gram of protein. Jack wants to consume at least 25 milligrams of vitamins and 28 grams of protein but keep the calories at a minimum. How many servings of each food should he eat