A company can decide how many additional labor hours to acquire for a given week. Subcontractors will only work for a maximum of 20 hours for week. the company must produce at least 200 units of product A, 300units of product b, and 400 units of product c. in 1 hour of work, worker 1 can produce 15 units of product a, 10units of product b, and 30 units of product c. worker2 can produce 5 units of product b, 20 units of product b, and 35 units of product c. worker3 can produce 20 units of product a, 15 units of product b, and 25units of product c. worker 1 demands a salary of $50/hr, worker 2 demands of salary $40/hr, and worker3 demands a salary of $45/hr. The company must choose how many hours day should be hire from each worker to meet their production requirements and minimize labor cost