really need help with part 2 of this problem and understanding it.

9. A 15.yearU S Trsury bond with a face vaIuedS1.OOOpays a coupon moment. his bond is trading at a yield to maturity of 6% in the manet The are What ts he price the bond todayf a) $745 67 b) $854.89 est.04900 d) 94221 e) $129.22 10. use the information in question 9. You want to price the same bond after one year. The ongoing yield to maturity of the bond has to 8% percent from 6%. What is the (O $875.03 b) $671.06 C) $923.44 d) S1100.45 e) $747.90