$]$A certain group of bonds has a combined redemption value of $$25,000$ that will be paid $9$ years from today.

The face value of the bonds is $$20,000,$ the coupon rate is $3\mathrm{.}15\%,$ and interest is paid semi$-$annually. How

much should you pay for these bonds if you wish to achieve a yield of $5\mathrm{.}50\%?$