Nguyen Technical Institute $($NTI$),$ a school owned by Than Nguyen, provides training to individuals who pay tuition directly to the school. NTI also offers training to groups in off$-$site locations. Its unadjusted trial balance as of December $31,$ is found on the trial balance tab. NTI initially records prepaid expenses and unearned revenues in balance sheet accounts. Descriptions of items a through h that require adjusting entries on December $31.$

An analysis of NTI$$s insurance policies shows that $$2,950$ of coverage has expired.

An inventory count shows that teaching supplies costing $$3,960$ are available at year$-$end.

Annual depreciation on the equipment is $$4,200.$

Annual depreciation on the professional library is $$7,800.$

On September $1,$ NTI agreed to do five courses for a client for $$3,200$ each. Two courses will start immediately and finish before the end of the year. Three courses will not begin until next year. The client paid $$16,000$ cash in advance for all five courses on September $1,$ and NTI credited Unearned Training Fees.

On October $15,$ NTI agreed to teach a four$-$month class $($beginning immediately$)$ for an executive with payment due at the end of the class. At December $31,$ $$8,000$ of the tuition has been earned by NTI.

NTI$$s two employees are paid weekly. As of the end of the year, two days$$ salaries have accrued at the rate of $$180$ per day for each employee.

The balance in the Prepaid Rent account represents rent for December.