I need help with part B and C. Thank you :)

Glocker Company makes three products in a single facility. These products have the following unit product costs:

Glocker Company makes three products in a single facility. These products have the following unit product costs Product S 33.50 50.00 56.40 S 20.90 23.50 14.30 Variable manufacturing overhead S 1.90 $ 1.30 S 0.20 9.00 Direct materials Direct labor Fixed manufacturing overhead 12.80 8.40 Unit product cost $69.10 $83.20 $79.90 Additional data concerning these products are listed below. Mixing minutes per unit Selling price per unit Variable selling cost per unit Monthly demand in units 1.90 0.50 0.20 S 65.00 87.40 80.90 S 1.30 1.80 1.60 2,000 2,700 4,000 The mixing machines are potentially the constraint in the production facility. A total of 7,430 minutes are available per month on these machines. Direct labor is a variable cost in this company