Journalize, record, and post when appropriate the following transactions in the general journal (all sales carry terms of 5/10, n/30):

201X

Dec. 16 Sold merchandise on account to Cart Co., invoice no. 1, $980.

18 Sold merchandise on account to French Co., invoice no. 2, $2,100.

20 Issued credit memorandum no. 1 to French Co. for defective merchandise, $700.

Use the following account numbers: Accounts Receivable, 112; Sales, 411;

Sales Returns and Allowances, 412; Sales Discounts 413.