Please answer each part of this question using detailed steps and I will submit them soon, thanks for your help!

Your broker has proposed that you pay $57000 today for an ordinary annuity of 56000 per year for 12 years. Your opportunity cost of funds is 8.58% and the return from this imvestment is tax-free. How much should you pay today for the ordinary annuity? Present your answer as a whole number to two decimals fincluding the 5 symbol), e.g. 53210.65 (25\% marks will be deducted if the 5 symbol is not provided)