Meacham Enterprises' bonds currently sell for $$1,280$ and have a par value of $$1,000.$ They pay interest twice a year and their coupon rate is $11\%.$ They have a $15-$ year maturity. What is their yield to maturity $($YTM$)?$

$6\mathrm{.}39\%$

$6\mathrm{.}72\%$

$7\mathrm{.}08\%$

$7\mathrm{.}45\%$

$7\mathrm{.}80\%$

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