Please help!

ABC Company purchased a land for Php 500,000 during 2017 and chooses the revaluation model in accounting for its land. The following information relates to that land, which is the only land asset owned by the Company: Date Fair Value December 31, 2017 Php 520,000 December 31, 2018 470,000 December 31, 2019 510,000 a ) What is the amount of unrealized gain on revaluation - land for the year 2017? Unrealized gain b ) How much is the accumulated other comprehensive income for the year 2017 to be recognized in the balance sheet? v accumulated other comprehensive income c ) What is the amount of unrealized gain on revaluation - land for the year 2018? d ) How much is the impairment loss for the year 2018? y impairment loss e ) How much is the accumulated other comprehensive income for the year 2018 to be recognized in the balance sheet? v f ) How much is the recovery of impairment loss and revaluation gain on land for the year 2019? v g ) What is the amount of unrealized gain on revaluation - land for the year 2019? h ) If the land was sold on January 10, 2020, for Php 515,000, how much is the gain on sale of land? i ) How much is the accumulated other comprehensive income to be recycled to the retained earnings as a result of the gain on sale of land