The chapter makes a distinction between stocks and flows. In this example, the “stock” is the amount of accounts receivable at any one time. The “flows” are new sales on credit and amounts collected from customers related to sales made in the past. Use the information shown to find the missing items.

Beginning Sales on Accounts Credit Receivable credit sales Collections from prior Receivable Ending Accounts a. 2,000 10,000 9,000 ? b. 8,000 50,000 ? 7,000 C. 9,000 ? 80,000 2,000 d. ? 100,000 90,000 13,000