Give an economic interpretation to the dual of the Cutting Edge Knife Company problem of Example 1 of Section 4.4.
The exclusive Cutting Edge Knife Company manufactures chef's knives and pocket knives. Each chef's knife requires 3 labor-hours, 7 units of steel, and 4 units of wood. Each pocket knife requires 6 labor-hours, 5 units of steel, and 3 units of wood. The profit on each chef's knife is $30, and the profit on each pocket knife is $50. Each day, the company has available 90 labor-hours, 138 units of steel, and 120 units of wood.