On October 1, 2017, Blue Inc. entered into a contract to sell a custom van to Smith Tours for $42.700. Under the contract, Smith is to pay Blue $4,600 on October 10, 2017 and pay the remainder of the purchase price upon delivery (scheduled for October 31, 2017). Smith makes the $4,600 payment in a timely manner. Blue delivers the van (with cost of $33,600) on October 31, 2017 (a) Prepare Blue's journal entry on October 1, 2017. (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 for the amounts.) Account Titles and Explanation Debit Credit