Please explain! 4 parts in one question!

Joe Henry's machine shop uses 3600 brackets during the course of a year. These brackets are purchased from a supplier 90 miles away. The holding cost per bracket per year is $1.50. Order cost per order is $18.75. Lead-time is 5 days. There are 300 working days per year. Please show the steps. a) What is the EOQ in brackets. (3 pts) b) The number of orders per year is? (2 pts) c) What is the annual holding cost? (2 pts) d) If the lead time is 5 days and there are 300 working days in a year. What is the Reorder Point in this problem? (3 pts)