Apex Properties, Inc. owns two warehouse buildings that it rents to other businesses. The two buildings are very desirable properties and this enables Apex to require that renters pay rent in advance. The following is data for each building: Building #1 – Located at 111 Warehouse Way Rental rate .............................................................. $3,000 per month Number of months of rent collected in advance ...... 3 months Dates when rent is collected in advance ................. January 1, April 1, July 1, October 1 Building #2 – Located at 444 Storage Street Rental rate .............................................................. $4,000 per month Number of months of rent collected in advance ...... 3 months Dates when rent is collected in advance ................. January 1, April 1, July 1, October 1 Apex has the accounting policy that rent collected in advance be initially recorded in a liability account. The balance in the Unearned Rent Revenue account as of December 31, 2020 was $0. On January 1, 2021, Apex collected cash for the 3 month advance payment of rent for both buildings. The cash collected is detailed below: Building #1 – for Jan., Feb. & March – 3 months cash collected ...... (3 x $3,000) ..... $ 9,000 Building #2 – for Jan., Feb. & March – 3 months cash collected ...... (3 x $4,000) ..... $12,000 Total cash collected on January 1, 2021 $21,000 The following is a partial list of the accounts in Apex’s General Ledger. These are the only accounts you need for this problem.  Cash  Unearned Rent Revenue (liability account)  Rent Revenue (revenue account Requirement 1 Prepare the January 1, 2021 General Journal entry to record the receipt of the $21,000 cash for 3 months advance payment of rent for both buildings. Requirement 2 Prepare a “T” account analysis to determine the required January 31, 2021 adjustment to the Unearned Rent Revenue account. Hint: The should be balance amount has been put in the “T” account analysis form. Requirement 3 Prepare the January 31, 2021 General Journal adjusting entry for Unearned Rent Revenue. Requirement 4 Prepare a “T” account analysis to determine the required February 28, 2021 adjustment to the Unearned Rent Revenue account. Requirement 5 Prepare the February 28, 2021 General Journal adjusting entry for Unearned Rent Revenue. Requirement 6  What would be the amount of Unearned Rent Revenue (a liability) shown on Apex Properties, Inc.’s Balance Sheet as of February 28, 2021?  What would be the amount of Rent Revenue on the Income Statement for the period February 1 to February 28, 2021?