An auditor's working papers contain the narrative description for the cash receipts and billing function for a building supply company. The company has only one store that sells a variety of tools, garden supplies, lumber, small appliances, and electrical fixtures to the public, although about half of the store's sales are made to contractors in the construction business. The company employs 12 sales associates (which are on salary), a credit manager, three full time clerical workers, and several part time cash register clerks and assistant bookkeepers. The full time clerical workers perform such tasks as cash receipts, billing, and accounting and are adequately bonded. They are referred to in the narrative as "accounts receivable supervisor", "cashier", and "bookkeeper" REQUIRED: (1) Prepare a flowchart of the cash receipts and billing function based on the attached narrative. Indicate four weaknesses in internal control based upon the flowchart prepared and the narrative provided. (2)