Laker Incorporated's fiscal year-end is December 31, 2021. The following is an adjusted trial balance as of December 31. Credit Debit $ 10,400 31,000 22,000 $ Accounts Cash Supplies Prepaid Rent Accounts Payable Notes Payable Common Stock Retained Earnings Dividends Service Revenue Salaries Expense Advertising Expense Rent Expense Utilities Expense Totals 1,400 14,000 32,000 7,400 2,400 55,600 18,400 11,400 8,400 6,400 $110,400 $110,400 Required: 1. Prepare the necessary closing entries. (If no entry is required for a particular transaction/event, select "No Journal Entry Required" in the first account field.) 2. Calculate the ending balance of Retained Earnings. Retained earnings 3. Prepare a post-closing trial balance LAKER INCORPORATED Post-Closing Trial Balance December 31, 2021 Accounts Debit Credit Totals 0