Please solve that bottom [ A. & B ] Ony by one detail solution, to explain. Thank you very much!

E2-2 Economic order quantity; order cost; carrying cost New England Co. predicts that it will use 360,000 gallons of material during the year. The material is expected to cost $5 per gallon. It anticipates that it will cost $72 to place each order. The annual carrying cost is $4 per gallon. a. Determine the most economical order quantity by using the LO1 EOQ formula. b. Determine the total cost of ordering and carrying at the EOO point