Exercise 1-6A Prepare an income statement (LO1-3) 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 $ 5,400 2,200 3,400 3,900 1,200 13,800 9,300 6,000 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