EX 6-8 Sales-related transactions, including the use of credit cards OBJ. 2 Journalize the entries for the following transactions: a. Sold merchandise for cash, $30,000. The cost of the merchandise sold was $18,000. b. Sold merchandise on account, $258,000. The cost of the merchandise sold was $154,800. c. Sold merchandise to customers who used MasterCard and VISA, $160,000. The cost of the merchandise sold was $96,000. d. Sold merchandise to customers who used American Express, $72,000. The cost of the merchandise sold was $43,200. e. Received an invoice from National Clearing House Credit Co. for $8,800, representing a service fee paid for processing MasterCard, VISA, and American Express sales