Question: Schmidt industries makes four different snake traps; the Harlan, the Gaylen, the Leah, and the Matthew. The Harlan sells for $200 and $40 in parts and $40 in labor; the Gaylen sells for $150 and requires $30 in parts and $30 in labor; the Leah sells for $100 and has $20 in parts and $20 in labor; the Matthew sells for $75 but requires only $10 of parts and $10 of labor. Schmidt Industries has 4 machines (A, B, C, and D) that are used in the production of each of these products. Each of these machines is available for 40 hours a week and there is no setup time required when shifting from production of one product to any other. The processing requirements to make any one unit of each product are shown in the table:

Schmidt Industries has monthly fixed costs of $5000 and has a demand of 80 Harlans, 60 Gaylens, 40 Leahs, and 20 Mathews for the coming week. How many of each of the 4 models should Susan, the operations manager, schedule for this week?