Byler Storage Barns makes four products in a single facility. Data concerning these products appear below: Products A B D $42.30 $50.00 $37.60 $33.50 Selling price per unit Variable manufacturing cost per unit Variable selling cost per unit Milling machine minutes per unit Monthly demand in units $20.80 $30.70 $21.00 $19.90 $ 2.70 $ 2.10 $ 1.00 $ 2.40 3.30 4.10 2.60 1.30 1,000 4,000 3,000 3,000 The milling machines are potentially the constraint in the production facility. A total of 28,200 minutes are available per month on these machines. How many minutes of milling machine time would be required to satisfy demand for all four products