please help with this problem, thank you!

The Super Discount store (open 24 heurs a day, every day) selis 8-packs of paper towels, at the rate of appreximately 427 packs per week, Because the tonels are so bulky, the annuat cost to carry them in inventory is estimated at 50.50 . The cost to place an order for more is $16, and it takes four days for an order to artive. (The store operates 52 weeks per year.) (a) Find the optimal order quantity. (Round your answer to the nearest whole number.) (b) What is the reorder point? (c) How often should an order be placed (in dars)? (Round your answer to the nearest whole number.) days