A 10% semiannual bond was issued in June of 2014 with 10 years to maturity. You purchased the bond when it was issued. Immediately after the purchase, the TYM changed to some new level X and remained at this new level for 5 years. In June of 2019 you received your coupon, the interest rates changed again to a new value of Y and you sold your bond for 103 (all of this happened in a single day). a. If your realized return is 12.1% (annualized value), what is the value of X? b. What is the value of Y?