On September 1, booked the race track for a private organization that will use the track one day per month for $2,000 each time, to be paid in the following month. The organization uses the track on September 30. First prepare the journal entry, if any, required to record each of the initial business activities on September 1. Then, prepare the adjusting journal entries, if any, required on September 30. (In cases where no entry is required, please select the option "No journal entry required" for your answer to grade correctly. Leave no cells blank - be certain to enter "0" wherever required. Omit the "$" sign in your response.)