Marge's Crafts sells work by local artists at her small store in Burnsville. Customers pay for their purchases at the time sale. Commercial customers, purchasing over 10 items, may pay in installments. Marge pays the local artists 50% at the time she buys their work, and the balance on the sale of the work to end-customer. All disbursements and receipts are handled in the store's main checking account.

Part A - Draw an E-R diagram with cardinalities of the store's revenue cycle.

Part B - Draw an E-R diagram with cardinalities of the store's expenditure cycle.