2. A company is both a producer and a user of brass couplings. The company operates 220 days a year and uses the couplings at a steady rate of 50 per day. Couplings can be produced at a rate of 200 per day. Annual holding cost is $1 per coupling, and machine set up cost is $35 per production run.

a. Determine the economic production quantity.

b. How many production runs per year will there be?

c. Calculate the maximum inventory level.