need help on 8,9, and 10. Not sure if 8 &9 are right

/.04 L/Y= Phot -1500 A (1200, 15000, 5000, 1) pv=0 V = 50,000 1-13.41 year 8. Three-part question) Five years from now you would like to have $25,000 for a down payment on a home. Assuming you could earn 99 interest, how much money would you need to invest today as a lump sum to meet your goal? How much money would you have to invest at the end of each year to meet your goal? How much would you need if you invested the payments at the beginning of each year with the first payment deposited today? 1) 25,000/(1.09 (16, 248.28| 2) 25000 = V(CI+)-] 25000 2504 PE(1.043-]1.04 25000 = P(5.98) - P: $477.31 9. Your eccentric aunt just passed away and she left you $18,000. You decide to invest the full amount (as a lump sum) into a mutual fund which will have a return of 10% per year (compounded monthly for the next 22 years. You will also invest $125 at the end of each month into the same mutual fund account for the full 22 years. How much will you have in the mutual fund account after 22 years? (Hint: this problem must be solved in two stages if you are using algebra.) $18,000 X 8.94 = FV OF 3 140,976.07 $125 x 953.17 = Prof $ 119,146.72 3) 25.000 P+P 11.093 25 000 = P + 4.57 = $280, 122.79 10. What would you be willing to pay on January 1, 2011) for an investment which you could sell on January 1, 2041 for $45,000? Assume that the interest rate between 2011 and 2041 will be 9% annually