Hart Manufacturing makes three products. Each product requires manufacturing operations in three departments: A, B, and C. The labor-hour requirements, by department, are as follows:

During the next production period, the labor-hours available are 490 in department A, 390 in department B, and 90 in department C. The profit contributions per unit are $29 for product 1, $32 for product 2, and $34 for product 3.