this is a operations research question. please take your time to answer the question and show working out so I can better understand.

Question 4 Juicy Patties uses 3,500 units of flour mix per year which it stores at $0.70 per unit per annum. The cost to place an order is $100. a. Calculate: i. The economic order quantity (EOQ) ii. The number of orders b. If the company decides to make the flour mix on its own machine with a potential capacity of 4,000 units per year, calculate: i. the batch order quantity (BOQ) ii. the annual ordering cost iii. the annual carrying cost