Please explain how I go about this step by step.

Exercise 4-12 The ledger of Novak Corp. on July 31, 2017, includes the selected accounts below before adjusting entries have been prepared. Debit Credit Investment in Note Receivable Supplies Prepaid Rent Buildings Accumulated Depreciation-Buildings Unearned Service Revenue $12,000 22,000 4,400 210,000 $150,000 11,300 An analysis of the company's accounts shows the following. I. The investment in the notes receivable earns interest at a rate of 6% per year. 2. Supplies on hand at the end of the month totaled $15,800 3. The balance in Prepaid Rent represents 4 months of rent costs. 4. Employees were owed $3,200 related to unpaid salaries and wages. 5. Depreciation on buildings is $5,400 per year. 6. During the month, the company satisfied obligations worth $4,650 related to the Unearned Services Revenue. 7. Unpaid maintenance and repairs costs were $2,300