The balance sheet of Antonio Vivaldi Company at Dec 31, 2007 ,includes the following:

Notesreceivable                                    36,000

Accountsreceivable                              182,100

Less: Allowance for doubtfulaccts         200,800

Transactions in 2007 include the following:

1. Accounts receivable of $138,000 were collected includingaccounts of $40,000 on which 2% sales discounts were allowed.

2. $6,300 was received in payment of an account which waswritten off teh books as worthless in 2007. (Hint:reestablish the receivable account)

3. Customer accounts of $17,500 were wretten off during theyear.

4. At year-end the Allowance for Doubtful Accounts wasestimated to need a balance of $20,000 . This estimate isbased on an analysis of aged accounts receivable.

Instructions: Prepare all journal entries necessary to reflect the tranactions above.