$7.$ The Government of Jamaica issues $10\%$ bonds that pays interest semi$-$annually $($tax free$)$ and matures in exactly $5$ years. The required return on this security is $15\%$ p$.$a$.$ Determine the current value of the bonds. $(5$ marks$)$

$8.$ Jungle Inc issued $11-$year bonds $1$ year ago at a coupon rate of $4\%.$ The bond makes semi$-$annual payments. If the required rate of return of an investor on these bonds is $8\%,$ what will the bond sell for today? $(5$ marks$)$

$9.$ AYC issued $10-$year bonds with a coupon rate of $5\%.$ The bond makes semiannual payments. If these bonds currently sell for $90\%$ of par value. What is the YTM$?$