E$2\mathrm{.}6($LO $3)($Adjusting Entries$)$ Karen Weller, D$.$D$.$S$.,$ opened a dental practice on January $1,2025.$ During the first month of operations, the following transactions occurred.

Performed services for patients who had dental plan insurance. At January $31,$$$750$ of such services was performed but not yet billed to the insurance companies.

Utility expenses incurred but not paid prior to January $31$ totaled $$520.$

Purchased dental equipment on January $1$ for $$80,000,$ paying $$20,000$ in cash and signing a $$60,000,3-$year note payable. The equipment depreciates $$400$ per month. Interest is $$500$ per month.

Purchased a one$-$year malpractice insurance policy on January $1$ for $$12,000.$

Purchased $$1,600$ of dental supplies. On January $31,$ determined that $$500$ of supplies were on hand.