Arabian Delights Company manufacture a product "P". The raw material used is Tubes. The following are the details of the material usage / consumption, Re-order period and the Re-order quantity: Re-order quantity 150 Normal usage (tubes per week) 100 Minimum usage (tubes per week) 50 Maximum usage (tubes per week) 200 Re-order Period Lead / time to supply (weeks) 6 - 8 Calculate the following: a. Re-order level b. Minimum level c. Maximum level e. What is the re-order level or point in Inventory Management