Jim's Gymnastics Training's operations for the month of October are summarized as follows:
• Provided $7,000 of training to students. Billed customers on account.
•Received $9,900 cash from students-of which $3,600 is for training provided in October (as billed above), $1,100 is for training to be provided in November, and $5,200 is for training provided in September.
• Paid September's gym rental bill of $1,200. Received October's bill of $1,500 but did not pay.
Prepare appropriate journal entries using the accrual basis of accounting.