A regional service shop for a TV manufacturer keeps a stock of TV circuits. The purchasing lead time is three weeks, during which demand is normally distributed with N (300, 1600). A circuit costs $90 and sells for $150. Annual inventory-holding cost is taken to be 25 percent. Shortages are backordered at a fixed cost of $6.00 per unit short. The service shop uses the base stock approach to manage this item. Find the reorder point and the ordering policy.