Presented below is information from Cullumber Computers Incorporated. July 1 Sold $18,000 of computers to Robertson Company with terms 3/15,n/60. Cullumber uses the gross method to record cash discounts. Cullumber estimates allowances of $1,170 will be honored on these sales. 10 Cullumber received paymeht from Robertson for the full amount owed from the July transactions. 17 Sold $180,000 in computers and peripherals to The Clark Store with terms of 2/10,n/30. 30 The Clark Store paid Cullumber for its purchase of July 17. Prepare the necessary journal entries for Cullumber Computers. (If no entry is required, select "No Entry" for the account tities and enter 0 for the amounts, Credit account titles are outomatically indented when the amount is entered. Do not indent manually.) Account Titles and Explanation Debit Credit (To record sales revenue.) (To record allowance for sales returns.) List of Accounts