Showcase Co., a furniture wholesaler, sells merchandise to Balboa Co. on account, $254,500, terms n/30. The cost of the goods sold is $152,700. Showcase issues a credit memo for $30,000 for merchandise returned prior to Balboa paying the original invoice. The cost of the merchandise returned is $17,500. Journalize Balboa Co.s entries for (a) the purchase, (b) the return of the merchandise for credit, and (c) the payment of the invoice. Refer to the Chart of Accounts for exact wording, date dec. 31.