ok
Volume = length * width * height
Substitution
[tex]\text{volume = 3 }\cdot\text{ 1 }\frac{1}{2}\cdot\text{ 3}\frac{1}{2}[/tex]Simplification
[tex]\begin{gathered} \text{ volume = 3 }\cdot\text{ }\frac{3}{2}\cdot\text{ }\frac{7}{2} \\ \text{Volume = }\frac{63}{4} \end{gathered}[/tex]Result
[tex]\text{ Volume = 15}\frac{3}{4}[/tex]