Chapter $6,$ pg$.199/81,$ Question $9,10,11$

$9.$ Rate of Retim. You bough a $10-3$ear $5$ poupon bond for $$1\mathrm{.}000$ and sold it $1$ ser later for $$1\mathrm{.}100$ what is the bate of refurtion after tax nete of hetum on poun pond investment?