The volume of a Rectangular prism is given as
[tex]V=\text{lwh}[/tex]Where l=lenght=7cm
h=height=8cn, w=width=5cm
Substitute the paramater into the formula above
[tex]V=7\times5\times8=280\operatorname{cm}^3[/tex]Hence, the volume of the rectangular prism is 280cm³