i need help with the cardinalities

a RBS Tech Inc. is a business located in Newark. It purchases network devices from all around and resells them to customers. At present, RBS Tech Inc. processes its purchases manually and asks you to develop a database to help better process purchase data. You have conducted several interviews with employees. The following is a summary of your discussions. RBS Tech Inc. has ten mangers, and each manager supervises at least one employee. One of managers of RBS Tech Inc. orders network devices online every Monday from a variety of suppliers. Suppliers generally deliver orders within two weeks. On arrival, one of employees checks each delivery against the order. In general, the employee receives each order in one delivery, but one delivery may include products that were ordered on two or more orders. Suppliers allow RBS Tech Inc. to pay for an order within 30 days, but all orders must be paid in full. An employee in the accounting deportment generally writes one check for each order, but may write a check to a supplier that covers several orders. RBS Tech Inc. has both a checking account and a savings account at NJ State Bank, and the checking account is used for payments. (Note: If the business rules are not clear, use typical cardinalities. You also need to show the relationship between manager and employee in your REA diagram.) Based on the above narrative description, create a REA diagram. Hints: Resources: Inventory and Cash Events: Purchase Order, Receive Goods, and Pay Cash Agents: Manager, Supplier, and Employee Purchase ordet Inventory ity Manager ' of Recone Goods to supplied of Pay cash H Employee Cash of