Margaret Moore, D.D.S., opened a dental practice on January 1, 2020. During the first month of operations, the following transactions occurred.

1.		Performed services for patients who had dental plan insurance. At January 31, $880 of such services were performed but not yet recorded.
2.		Utility expenses incurred but not paid prior to January 31 totaled $700.
3.		Purchased dental equipment on January 1 for $81,000, paying $20,000 in cash and signing a $61,000.0, 3-year note payable. The equipment depreciates $405.0 per month. Interest is $610 per month.
4.		Purchased a one-year malpractice insurance policy on January 1 for $26,400.
5.		Purchased $1,500 of dental supplies. On January 31, determined that $400 of supplies were on hand.