We have to use the function Sin(x), as in the following equation
[tex]\sin (x)=\frac{\text{ Opposite side}}{\text{ Hypotenuse}}[/tex][tex]\begin{gathered} \sin (24)=\frac{\text{ CB}}{22} \\ 22\cdot\sin (24)=\text{ CB=8.948 Isolating CB} \\ \text{ Rounded to the nearest tenth is 8.9. } \end{gathered}[/tex]