can you explain how to do this and how you got your anwser so ill know how to do this in the future

Wells Technical Institute (WTI), a school owned by Tristana Wells, provides training to individuals who pay tuition directly to the school. WTI also offers training to groups in off-site locations. Its unadjusted trial balance as of December 31 follows, along with descriptions of items a through h that require adjust- ing entries on December 31. Additional Information a. An analysis of WTI's insurance policies shows that $2,400 of coverage has expired. b. An inventory count shows that teaching supplies costing $2,800 are available at year-end. c. Annual depreciation on the equipment is $13.200. d. Annual depreciation on the professional library is $7.200. e. On September 1, WTI agreed to do five courses for a client for $2.500 each. Two courses will start ima mediately and finish before the end of the year. Three courses will not begin until next year. The client paid f. On October 15, WTI agreed to teach a four-month class (beginning immediately) for an executive with payment due at the end of the class. At December 31, $7.500 of the tuition has been earned by WTI 9. WTI's two employees are paid weekly. As of the end of the year, two days' salaries have accrued at the rate of $100 per day for each employee. h. The balance in the Prepaid Rent account represents rent for December. Wells Technical Institute (WTI), a school owned by Tristana Wells, provides training to individuals who pay tuition directly to the school. WTI also offers training to groups in off-site locations. Its unadjusted trial balance as of December 31 follows, along with descriptions of items a through h that require adjust- ing entries on December 31. Additional Information a. An analysis of WTI's insurance policies shows that $2,400 of coverage has expired. b. An inventory count shows that teaching supplies costing $2,800 are available at year-end. c. Annual depreciation on the equipment is $13.200. d. Annual depreciation on the professional library is $7.200. e. On September 1, WTI agreed to do five courses for a client for $2.500 each. Two courses will start ima mediately and finish before the end of the year. Three courses will not begin until next year. The client paid f. On October 15, WTI agreed to teach a four-month class (beginning immediately) for an executive with payment due at the end of the class. At December 31, $7.500 of the tuition has been earned by WTI 9. WTI's two employees are paid weekly. As of the end of the year, two days' salaries have accrued at the rate of $100 per day for each employee. h. The balance in the Prepaid Rent account represents rent for December