Refer back to the roofing manufacturer problem described in plans 1-4 in the textbook, and in solved problem 13.2 in the lecture slides. We now want the firm to maintain a constant workforce of 6 employees, with the remainder of demand filled by subcontracting. Calculate the total cost of this plan for both full-time labor and sub-contractor labor, using the facts below. You can simply fill in the blanks in the table below