On May 1, 2020, Richardson Inc. entered into a contract to deliver one of its specialty mowers to Kickapoo Landscaping Co. The contract requires Kickapoo to pay the contract price of $900 in advance on May 15 , 2020. Kickapoo pays Richardson on May 15, 2020, and Richardson delivers the mower (with cost of $575 ) on May 31, 2020. (a) Prepare the journal entry on May 1, 2020, for Richardson. (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 0 for the amounts.) (b) Prepare the journal entry on May 15,2020, for Richardson. (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 0 for the amounts.) (c) Prepare the journal entry on May 31, 2020, for Richardson. (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 0 for the amounts.) (c) Prepare the journal entry on May 31,2020, for Richardson. (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 0 for the amounts.) D 21