quantity of machines 100 90 (10,84) 80 70 60 50 40 30 20 (20,20) 10 (30,9) (40,5) q=200 10 20 30 40 50 60 quantity of workers A jewelry firm uses workers and machines to make bracelets. Workers cost $100 per day and machines cost $50 per day. The firm produces 200 bracelets per day. The lowest variable cost of producing 200 bracelets is O $3450 O $6000 O $3000 O $4250