On January 2, Duffy Dog Ltd. sold merchandise on account to R. Thomas for $51,000, terms n/30. The company uses a perpetual inventory system and the merchandise originally cost $30.500. On February 1, R. Thomas gave Duffy Dog a five-month, 6% note in settlement of this account. Interest is due at the beginning of each month, starting March 1. On April 30, Duffy Dog's year end, annual adjusting entries were made. On July 1, R. Thomas paid the note and any remaining interest. Prepare the journal entries for Duffy Dog to record the transactions only on the dates listed above. (List all debit entries before credit entries. Credit account titles are automatically indented when the amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter for the amounts.) Date Account Titles and Explanation Debit Credit (To record sales) (To record cost of merchandise sold)