Answer:
Date         Particular             Debit   Credit
May 10, 2020 Â No Entry (Note 1) Â Â Â Â Â Â Â Â $0 Â Â $0
             (To record contact entered into)
June 15, 2020  Account Receivable A/c  $1,810
                To Sales Revenue A/c       $1,810
             (To record Sales)
June 15, 2020 Â Cost of goods sold A/c. Â Â $1,050
                To Inventory A/c             $1,050
             (To record cost of goods sold)
July 15, 2020   Cash A/c               $1,810
                 To Account Receivable A/c    $1,810
             (To record payment received) Â