Susan Wilson, D$.$D$.$S$.,$ opened a dental practice on January $1,2025.$ During the first month of operations, the following transactions occurred. $1.$ Performed services for patients who had dental plan insurance. At January $31,$ $$721$ of such services was performed but not yet billed to the insurance companies.

$2.$ Utility expenses incurred but not paid prior to January $31$ totaled $$523.$

$3.$ Purchased dental equipment on January $1$ for $$88,000,$ paying $$20,000$ in cash and signing a $$68,000,3-$year note payable. $($a$)$ The equipment depreciates $$408$ per month. $($b$)$ Interest is $$540$ per month.

$4.$ Purchased a one$-$year malpractice insurance policy on January $1$ for $$11,160.$

$5.$ Purchased $$1,449$ of dental supplies. On January $31,$ determined that $$470$ of supplies were on hand.