Bacon Company makes four products in a single facility. These products have the following unit product costs: Direct materials Direct labor Variable manufacturing overhead Fixed manufacturing overhead Unit product cost A $15.25 20.35 5.25 27.45 $68.30 Products BC $11.15 $11.95 28.35 34.55 3.65 3.55 35.75 27.55 $78.90 $77.60 $11.55 41.35 4.15 38.15 $95.20 Additional data concerning these products are listed below. Grinding minutes per unit Selling price per unit Variable selling cost per unit Monthly demand in units 3.80 $77.05 $ 3.15 4,380 Products 5.30 4.30 $94.45 $88.35 $ 2.15 $ 4.25 4,380 3,380 D 3.40 $105.15 $ 2.55 2,380 The grinding machines are the constraint in the production facility. A total of 55,500 minutes is available per month on these machines. Direct labor is a variable cost in this company. How many minutes of grinding machine time would be required to satisfy demand for all four products