Record the following transactions on the books of Cullumber Co. (Credit account titles are automatically indented when amount is entered. Do not indent manually.) a. On July 1, Cullumber Co. sold merchandise on account to Waegelein Inc. for $15,900, terms 4/10, n/30. b. On July 8, Waegelein Inc. returned merchandise with a sales price of $3,600 to Cullumber Co. C. On July 11, Waegelein Inc. paid the balance due. b. J Account Titles and Explanation Debit Credit