Since x/9•4 is a multiple step problem you could do it one of two ways you could either divide 4 since you are multiplying four or you can multiply by nine since you are dividing by nine
The difference between these two figures is the shape of the base. Prisms are "named" by their bases. A rectangular prism has a rectangular base, a triangular prism has a triangular base, a square prism would have a square base, etc.
