The following are two independent situations. (Credit account titles are automatically indented when amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts.) (a) On January 6, Metlock Co. sells merchandise on account to Pryor Inc. for $6,000, terms 2/10, n/30. On January 16, Pryor Inc. pays the amount due. Prepare the entries on Metlock's books to record the sale and related collection. (Omit cost of goods sold entries.) (b) On January 10. Andrew Farley uses his Whispering Winds Co. credit card to purchase merchandise from Whispering Winds Co. for $10,100. On February 10. Farley is billed for the amount due of $10,100. On February 12 , Farley pays $5,000 on the balance due. On March 10. Farley is billed for the amount due, including interest at 1% per month on the unpaid balance as of February 12. Prepare the entries on Whispering Winds Co.'s books related to the transactions that occurred on January 10 , February 12, and March 10. (Omit cost of goods sold entries.)