Please answer this question. Thank You.

Tuna Industries is trying to improve its inventory control system and has installed an online system at its retail stores. Tuna anticipates sales of 144,500 units per year, an ordering cost of $12 per order, and carrying costs of $1.20 per unit. In the second year, Tuna Industries finds that it can reduce ordering costs to $3 per order, but carrying costs will stay the same at $1.20 per unit. a-1. What is the economic ordering quantity for the second year? Economic ordering quantity (EOQ) units a-2. How many orders will be placed during the second year? Number of orders a-3. What will the average inventory be for the second year? Average inventory units a-4. What is the total cost of ordering and carrying inventory for second year? Total costs