Petromax Enterprises uses a continuous review inventory control system for one of its SKUs. The following information is available on the item. The firm operates 52 weeks in a year. Refer to the standard normal table for z-values > Demand = 91,000 units/year > Ordering cost = $30.00/order > Holding cost = $4.50/unit/year > Average lead time = 4 weeks > Standard deviation of weekly demand = 225 units a. The economic order quantity for this item is 1102 units. (Enter your response rounded to the nearest whole number) b. If Petromax wants to provide a 90% service level, the safety stock is units (enter your response rounded to the nearest whole number) and the reorder point is units (enter your response rounded to the nearest whole number)