Answer:
First calculate Net Income;
= Service revenue - Salaries and Wages Expense - Insurance Expense - Rent Expense - Supplies Expense - Depreciation Expense
= 30,000 - 15,000 - 2,000 - 4,500 - 500 - 1,000
= $7,000
              Statement of Retained Earnings
Beginning Balance                     $12,600
Add: Net Income                      $ 7,000
                                    $19,600
Less: Dividends                        $5,000
Closing Balance                       $14,600