Need help with all the red

Problem 3-6A This is the trial balance of Sheridan Company on September 30. SHERIDAN COMPANY Trial Balance September 30, 2017 Debit Credit Cash Accounts Receivable Supplies Equipment Accounts Payable Unearned Service Revenue Common Stock Retained Earnings $23,580 6,980 4,690 10,590 $9,180 3,690 19,380 13,590 $45,840 $45,840 The October transactions were as follows. Oct. 5 10 15 17 20 29 31 Received $1,440 in cash from customers for accounts receivable due. Billed customers for services performed $5,850. Paid employee salaries $1,080. Performed $560 of services in exchange for cash. Paid $1,890 to creditors for accounts payable due. Paid a $310 cash dividend. Paid utilities $410. Your answer is correct. Prepare a general ledger using T-accounts. Enter the opening balances in the ledger account Cash