Below are the account balances for Cowboy Law Firm at the end of December. Cash Accounts Balances $ 4,000 Salaries expense 1,500 Accounts payable 2,000 Retained earnings 4,400 Utilities expense 1,000 Supplies 12,400 Service revenue 7,900 Common stock 4,600 Required: Use only the appropriate accounts to prepare an income statement. Anewaris comulate but mo