Refer to the Gulf Golf Problem described in the Lecture sessions, suppose that management encounters each of the following situations:

a.The accounting department revises its estimate of the profit contribution for the deluxe bag to $18 per bag

b.A new low-cost material is available for the standard bag(S), and the profit contribution per standard bag can be increased to $20 per bag. (Assume the profit contribution of the deluxe bag(D) is the original $9 value)

c.New sewing equipment is available that would increase the sewing operation capacity to 750 hours (Assume 10S + 9D is the appropriate objective functions)

If each of these conditions is encountered separately, what are the optimal solution and the total profit contribution for each situation?