pls help me in number 1 and 2... im in a bit rush pls...

You deposit P10 000 into a 9% account today . At the end of two years, you will deposit P30 000 . In five years you plan a P40 000 purchase . How much is left in the accoount one year after the purchase ? C P15,518.45 P16,345.35 b P15,222.65 P16,789.35 d A sum of P1,000 is invested now and left for 8 years, at which time the principal is withdrawn. The interest that has accrued is left for another 8 years. If the effective annual interest rate is 5%, what will be the withdrawal amount at the end of the 16th year? P705 P507 d P905 P509 d