1. Taking into account both variable costs and fixed costs, what is the maximum possible total profit contribution? (express your answer in $)

2. Taking into account both variable costs and fixed costs, how much product 1 should be produced to maximize the total profit contribution? (express your answer in number of units)

3. Taking into account both variable costs and fixed costs, how much labor is actually used to maximize the total profit contribution? (express your answer in hours)

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 450 in department A,350 in department B, and 50 in department C. The profit contributions per unit (not including any setup costs) are $28 for product 1,$30 for product 2 , and $25 for product 3 . Setup costs are $600 for product 1,$550 for product 2 , and $400 for product 3 . Management instructed us not to consider making more than 175 units of product 1,150 units of product 2 , or 140 units of product 3