please help me, i dont have accounting background

BKAF1023_Exercise Chapter 5 Question 1: Prepare year-end adjusting entries for each of the following situations. a. The Office Supplies account showed a beginning debit balance of $800 and purchases of $1,000. The ending debit balance was $400. b. Depreciation on buildings is estimated to be $7,600. C. A one-year insurance policy was purchased for $6,000. Five months have passed since the purchase. d. Accrued interest on notes payable amounted to $1,500. e. The company received a $14,400 advance payment during the year on services to be performed. By the end of the year, one-third of the services had been performed. f. Payroll for the five-day workweek, to be paid on Friday, is $14,000. The last day of the period is a Tuesday. g. Services totaling $780 had been performed but not yet billed or recorded