On June 10, Swifty Company purchased $7,900 of merchandise on account from Sheffield Company. FOB shipping point, terms 3/10. n/30. Swifty pays the freight costs of $600 on June 11. Goods totaling $800 are returned to Sheffield for credit on June 12. On June 19. Swifty pays Sheffeld Company in full, less the discount. Both companies use a perpetual inventory system. (a) Prepare separate entries for each transaction on the books of Swifty Company. (Credit occount titles are outomatically indented when amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter O for the amounts. Record journal entries in the order presented in the problem.)