I just need help with questions 3-6

Citation Builders, Inc., builds office buildings and single-family homes. The office buildings are constructed under contract with reputable buyers. The homes are constructed in developments ranging from 10-20 homes and are typically sold during construction or soon after. To secure the home upon completion, buyers must pay a deposit of 10% of the price of the home with the remaining balance due upon completion of the house and transfer of title. Failure to pay the full amount results in forfeiture of the down payment. Occasionally, homes remain unsold for as long as three months after construction. In these situations, sales price reductions are used to promote the sale. During 2021, Citation began construction of an office building for Altamont Corporation. The total contract price is $17 million. Costs incurred, estimated costs to complete at year-end, billings, and cash collections for the life of the contract are as follows: Costs incurred during the year Estimated costs to complete as of year-end Billings during the year Cash collections during the year Also during 2021, Citation began a development consisting of 12 identical homes. Citation estimated that each home will sell for $760000, but individual sales prices are negotiated with buyers. Deposits were received for 8 of the homes, 3 of which were completed during 2021 and paid for in full for $760,000 each by the buyers. The completed homes cost $570,000 each to construct. The construction costs incurred during 2021 for the 9 uncompleted homes totaled $3,420,000. Required: 1. Which method is most equivalent to recognizing revenue at the point of delivery? 2. Answer the following questions assuming that Citation concludes it does not qualify for revenue recognition over time for its office building contracts: 2-a. How much revenue related to this contract will Citation report in its 2021 and 2022 income statements? 2-b. What is the amount of gross profit or loss to be recognized for the Altamont contract during 2021 and 2022? 2-c. What will Citation report in its December 31, 2021, balance sheet related to this contract? (Ignore cash.) 3. Answer the following questions assuming that Citation recognizes revenue over time according to percentage of completion for its office building contracts. 3-a. How much revenue related to this contract will Citation report in its 2021 and 2022 income statements? 3-b. What is the amount of gross profit or loss to be recognized for the Altamont contract during 2021 and 2022? 3-c. What will Citation report in its December 31, 2021, balance sheet related to this contract? (Ignore cash.) 4. Assume the same information for 2021 and 2022 , but that as of yearend 2022 the estimated cost to complete the office building is $7,650,000. Citation recognizes revenue over time according to percentage of completion for its office building contracts. 4-a. How much revenue related to this contract will Citation report in the 2022 income statement? 4-b. What is the amount of gross profit or loss to be recognized for the Altamont contract during 2022? 4-c. What will Citation report in its 2022 balance sheet related to this contract? (Ignore cash.) 5. Which method of accounting should Citation Builders, Inc. adopt for its single-family houses? 6. What will Citation report in its 2021 income statement and 2021 balance sheet related to the singlefamily home business (ignore cash in the balance sheet)