Hottenstein, Giffith, and Hult, attorneys at law, do a great deal of priniting. The firm uses a single type of printer with annual deamand for print cartrides of 480 per year. The order cost is $15 per order and the carrying cost is 20 percent per cartridge per year of the purchase cost of $35 per cartidge.
A. How many print cartridges should the firm order at one time?
B. What is the time between orders?