Journalize entries for the following related transactions of Greenville Heating & Air Company. Refer to the chart of accounts for the exact wording of the account titles. CNOW journals do not use lines for journal explanations. Every line on a journal page is used for debit or credit entries. CNOW journals will automatically indent a credit entry when a credit amount is entered. Mar. 1 Purchased $42,700 of merchandise from Foster Co. on account, terms 2/10, n/30. 9 Paid the amount owed on the invoice within the discount period. 11 Discovered that $8,000 of the merchandise purchased on Mar. 1 was defective and returned items, receiving credit. 18 Purchased $6,100 of merchandise from Foster Co. on account, terms n/30. 20 Received a refund from Foster Co. for return on Mar. 11 less the purchase on Mar. 18.