any prepares monthly financial statements to submit to its bank, as part of a requirement related to a debt covenant on a fairly large loan. The November 30 and December 31, 20X1, trial balances contained the following account information: Supplies Prepaid insurance Salaries payable Nov. 30 Dec. 31 Dr. Cr. Dr. Cr. 1,500 6,000 3,000 4,500 10,000 2,000 15,000 1,000 Deferred rent revenue The following information is also known: 1. The December income statement reported $2,000 in supplies expense 2. No insurance payments were made in December 3. $10,000 was paid to employees during December for salaries 4. On November 1, 20X1, a tenant paid Cougar $3,000 in advance rent for the period November through January. Deferred rent revenue was credited. Required: 1. What is the cost of supplies purchased during December? 2. What was the adjusting entry recorded at the end of December for prepaid insurance? 3. What was the adjusting entry recorded at the end of December for accrued salaries? 4. What was the amount of rent revenue recognized in December? What adjusting entry was recorded at the end of the December for deferred rent revenue?