solve for a and b please

Suppose a ten-year, $1,000 bond with an 8.5% coupon rate and semiannual coupons is trading for $1,035.97 a. What is the bond's yield to maturity (expressed as an APR with semiannual compounding)? b. If the bond's yeid to maturity changes to 9.1% APR, what will be the bond's price? a. What is the bond's yield to maturity (expressed as an APR with semiannual compounding)? The bond's yiold to maturity is \%. (Round to two decimal places.)