how do I solve this?

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 $ 4,200 1,600 2,200 4,400 1,100 12,600 8,100 4,800 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 0