Need help with this problem please! Not sure that I understand.

Question 2 Constrained Resource (12 points 22 min) Brown Company makes four products in a single facility. These products have the following unit product costs: Variable Selling Cost per Unit Monthly Demand in Units 3.000 CI The grinding machines are potentially a constraint in the production facility. A total of 10.500 minutes ale. available per month on these machines. Direct labour is a variable cost in this company. Reguired a) How many minutes of grinding machine time would be required to satisfy demand for all four products? b) Which product makes the LEAST protable use of the grinding machines? c) Which product makes the MOST protable use of the grinding machines? d) What maximum amount (rounded to the nearest whole cent) should the company be willing to pay for one additional minute of grinding machine time if the company has made the best use of the existing grinding machine capacity? e) Given the current capacity, what is the greatest total contribution margin Brown Company can earn? f) What is the markup percentage on Product A if Brown Company uses the absorption costing approach