a) Develop a linear programming model of the Hartman Compary problem. Solve the model to determine the optimal production quantities of products 1 and 2. If required, round your answer to two decimal places. 6 What is the upper limit or what you would be willing to pay per hour of overtime in the department you recommended? If required, round your answer to two decimal places. j total contribution to profit? If required, round your answer to two decimal places. If required, round your answer to nearest whole number. Total Profit 3 How much overtime do you recommend using in each department? If required, round your answer to two decimal places. If you answer is zero, enter " 0 ?. What is the increase in the total contribution to profit if overtime is used? If required, round your answer to nearest whole number