Please help me!

Bruce Corporation 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 Products A B C D $14.40 $10.30 $11.10 $10.70 19.50 27.50 33.70 40.50 4.40 2.80 2.70 3.30 26.60 34.90 26.70 37.30 $64.90 $75.50 $ 74.20 $91.80 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 Products A B C D 3.90 5.40 4.40 3.50 $76.20 $93.60 $87.50 $104.30 $ 2.30 $ 1.30 $ 3.40 $ 1.70 4,100 4,100 3,100 2,100 The grinding machines are potentially the constraint in the production facility. A total of 53,700 minutes are 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