HELP! What did I do wrong here?

On August 31, the balance sheet of Sheridan Company showed Cash $12,000. Accounts Receivable $4,700, Supplies $600. Equipment $6,000, Accounts Payable $6,600, Common Stock $15,700, and Retained Earnings $1,000. During September, the following transactions occurred. 1. Paid $3,350 cash for accounts payable due. 2. Collected $1,350 of accounts receivable. 3. Purchased additional equipment for $1,900, paying $850 in cash and the balance on account. 4. Recognized revenue of $7,600, of which $3,250 is collected in cash and the balance is due in October. 5. Declared and paid a $850 cash dividend. 6. Paid salaries $2,300, rent for September $1,000, and advertising expense $150. 7. Incurred utilities expense for month on account $180. 8. Received $13,000 from Capital Bank on a 6-month note payable. Assets Bal. $ 2. 3. 4. 6. 7. 8. Supplies quity Expenses $ $ 7600 i 3450 Dividends $ i i i 850 Salaries and wages expense Rent expense Advertising expense