What is the volume of the prism?Enter your answer in the box as a mixed number in simplest form. HELP ASAP ILL MARK BRAINILEST!

The volume of a prism, is the area of the cross section x the length:

In this case it is base x height x length:

6 x 4.5 x 2.5 = 67.5cm³ 
                      = 67 1/2 as a mixed number