For each of the following separate cases, prepare adjusting entries required of financial statements for the year ended (date of) December 31. 1. A Company had $800 of office supplies available at the beginning of the current year. During the year the Company purchased $4,550 worth of office supplies. On December 31 of this year $435 worth of office supplies remained. 2. One-third of the service work related to $21,000 cash received in advance is performed this period. 3. The Prepaid Insurance account had a $7,000 balance on December 31, an analysis of insurance policies shows that $1100 of unexpired insurance benefits remain on December 31 4. Depreciation on the company's equipment for the first year, Dec 31 is $4,000 Instructions: a. Show all calculations for each entry b. Prepare the journal entry to adjust the accounts. n9:27