please answer, it's urgent

Q1. a) At the end of 3 years, how much is an initial deposit of N1000 worth, assuming a compound annual interest rate of (i) 100% 10% and (iii) 0% (25 Marks) (ii) b) N1000 is to be received at the end of I year, N500 at end of 2 years, and N100 at end of 3 years. What is the aggregate present value of these receipts assuming a discount rate of (i) 4% ? (ii) 25% ? (15 Marks)