A$$ bond's market price is $$$$800.$ It has a $$$$1,000$ par$$ value, will mature in $6$years$,$ and has a coupon interest rate of $11$ percent annual$$ interest, but makes its interest payments semiannually. What is the$$ bond's yield to$$ maturity? What happens to the$$ bond's yield to maturity if the bond matures in $12$years$?$ What if it matures in $3$years$?$