beginner accounting course problem

Adjustment information: Office supplies counted at the end of 2014 amounted to S9,200. During 2014, $10,800 of prepaid insurance was used up. Depreciation expense on the equipment was determined to be $24,800 for 2014. Unearned service revenue on December 31, 2014 was determined to be $13,600. Employees earned salaries of S6,600 at December 31, 2014, but they had not yet been paid. Prepare the adjusting entries needed to correctly state the accounts at December 31,2014. Prepare an adjusted trial balance for the year ended December 31, 2014. Prepare the closing entries required to prepare the accounts for 2014. Prepare the post-closing trial balance