5. Suppose a firm currently operates a supply chain network of 10 warehouses and each warehouse has on average 50,000 cases of inventory. The firm is exploring possible changes in the network of warehouses. (4 pts.) a) How much inventory would there be in the system (in all warehouses together) if they doubled the number of warehouses? (5 pts.) b) How many warehouses should there be if they want the total amount of inventory in the system to be 1 million cases