Please help me answer these questions 3 and 4 with solution or explanation. Thank you

'17 T73"? ' V 93. State whether each of the following is an accounting policy or an accounting estimate for mmmwrporam ~ The useful life of its building is determined as being 10 years. - Wincorporated Winmme arising from service contracts on the basis of the stage of completion. - Wlnmrporated determines that it will calculate its warranty provision using past experience of defective products. - The current year's warranty provision is calculated by providing for 3% of current year sales, based on last year's warranty claims amounting to 3% of sales. 4. State whether each of the following material items would be an adjusting or non- adjusting event after the reporting period. Supply a sensible answer written in the context of the Standards. Yamanaka Company's financial statements are wafer issue on March 16, 2020 and the end of the reporting period is December 31, 2019. a. Yamanaka Company, on December 31, 2019, had recorded an overdue receivable from WEnterprises at P125,000 because collection of the full amount of P4,000,000 was in doubt. On February 3, 2020, a receiver was appointed to W. The receiver informed Yamanaka that the P4,000,000 would be paid in full by April 30, 2020. b. On February 20, 2020, Yamanaka Company issued corporate bonds for P5,000,000, with interest of 5% payable semi-annually in arrears. r. Yamanaka Company had several investments in shares, movements of which are recorded as gain or loss. As of December 31, 2019, these investments ware recorded at the market value at that date, which was P850,000. During January and February 2020, there was a steady decline in the market values of all the shares in the portfolio. By February 21, 2020, the market value of the investments had fallen to P700,000. d. A contingent liability was reported at December 31 in respect of a lawsuit against the company by an employee who was injured during 2019. The case was not heard until the rst week of February 2020. On February 17, 2020, the judge handed down his decision, against Yamanaka Company. The judge determined that Ya manaka Company was liable to pay damages and costs WPSODOOOO. e. Same as in item (d), except that the damages and costs awarded against Yamanaka Company were P2 billion, leading Yamanaka to place itself into voluntary liquidation, thus closing the business