Prepare the adjusting entries on January 31. Account titles are Accumulated DepreciationEquipment, Depreciation Expense, Service Revenue, Accounts Receivable, Insurance Expense, Interest Expense, Interest Payable, Prepaid Insurance, Supplies, Supplies Expense, Utilities Expense, and Utilities Payable.

Evan Watts, D.D.S., opened a dental practice on January 1, 2017. During the first month of operations, the following transactions occurred.

1. Watts performed services for patients totaling $2,400. These services have not yet been recorded.
2. Utility expenses incurred but not paid prior to January 31 totaled $400.
3. Purchased dental equipment on January 1 for $80,000, paying $20,000 in cash and signing a $60,000, 3-year note payable. The equipment depreciates $500 per month. Interest is $600 per month.
4. Purchased a one-year malpractice insurance policy on January 1 for $12,000.
5. Purchased $2,600 of dental supplies. On January 31, determined that $900 of supplies were on hand.

Explain on a table