Below are the account balances for Cowboy Law Firm at the end of December. Accounts Cash Salaries expense Accounts payable Retained earnings Utilities expense Supplies Service revenue Common stock Balances $ 4,600 1,800 2,600 4,100 1,000 13,000 8,500 5,200 Required: Use only the appropriate accounts to prepare an income statement. COWBOY LAW FIRM Income Statement For the Period Ended December 31 Expenses: Total expenses