Solve the linear programming model formulated in Problem 48 for Metro Food Services Company by using the computer.

a. If Metro Food Services could hire another worker and increase its available assembly time by 480 minutes or increase its vending machine capacity by 100 sandwiches, which should it do?

Why? How much additional profit would your decision result in?

b. What would the effect be on the optimal solution if the requirement that at least 200 sandwiches of each kind be stocked was eliminated? Compare the profit between the optimal solution and this solution. Which solution would you recommend?

c. What would the effect be on the optimal solution if the profit for a ham and cheese sandwich was increased to $0.40? To $0.45?