please help me 1 and 2

1. A new boiler was installed by a textile plant at a total cost P300,000 and project to have a useful life of 15 years. At the end of its useful life. it is estimated to have a salvage value of P30,000. Determine the capitalized cost if interest is 18% compounded annually. 2. A granite quarry purchased for P1 500.000 is expected to be exhausted at the end of 4 years. If the resale value of the land is P100.000, what annual income is required to yield an investment rate of 12%? Use sinking rate of 3%