please i need clear answers for all the questions. thank you

1) What is the IRR of the following cashflows? 2) What is the NPV at a 15% target yield? 3) How Much can I pay for the property with a 15% target yield? 4) I have an NOI of $172,400. The lender indicated that I can borrow funds at a 7.0% interest rate with a 25 year amortization and 5 year term at a 1.20 Debt Service Ratio(DCR). The lender will charge 2 points. a. What is the monthly payment? b. What is the APR (annual percentage rate) if fully amortized? c. What is the APR at the end of the loan term? d. What if I pay the loan off at the end of the second year, what is my APR? e. What if there was a prepayment penalty of 1.5% at the end of year 4 , what is m APR