I was wondering if anybody could help me on this and let me know if I have done any of this right.

1. Cash
2. Accounting Receivable
3. Supplies
4. Prepaid Insurance
5. Equipment
6. Notes Payable
7. Accounts Payable
8. Common Stock
9. Retained Earnings
10. Dividends
11. Service Revenue
12. Rent Expense
13. Repair Expense

Debit Credit
7 1 A. Paid for supplies purchased on credit last month.
2 11 B. Billed customers for services performed.
12 1 C. Paid the current month's rent.
3 7 D. Purchased supplies on credit.
1 6 E. Received cash from customers for services performed but not yet billed.
5 7 F. Purchased equipment on account.
1 13 G. Received a bill for repairs.
1 5 H. Returned part of the equipment purchased in f for a credit.
1 11 I. Received payments from customers previously b billed.
13 1 J. Paid the bill received in G.
no entry K. Received an order for services to be performed.
7 1 L. Paid for repairs with cash.
7 6 M. Made a payment to reduce the principal of the note payable.
10 1 N. Declared and paid a dividend.

I don't have a clue what I am doing if anybody can help I would appreciated it.