For each of the following separate cases, prepare adjusting entries required of financial statements for the year ended (date of) December 31, 2011. (Assume that prepaid expenses are initially recorded in asset accounts and that fees collected in advance of work are initially recorded as liabilities.) One-third of the work related to $30,000 cash received in advance is performed this period. Wages of $9,000 are earned by workers but not paid as of December 31, 2011. Depreciation on the company's equipment for 2011 is $19,127. The Office Supplies account had a $480 debit balance on December 31,2010. During 2011, $5,349 of office supplies are purchased. A physical count of supplies at December 31, 2011, shows $587 of supplies available. The Prepaid Insurance account had a $5,000 balance on December 31, 2010. An analysis of insurance policies shows that $2,200 of unexpired insurance benefits remain at December 31, 2011