eight
A rectangular prism has 6 faces 8 vertices 12 edges
A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges.
A Rectangular Prism contains 12 edges and 6 faces. So there is exactly 6 more edges than faces.
5
eight(8)
6 sides
Triangular Prisum
Assuming the words are "vertices" and "prism" - despite the spelling - the answer is six.
a rectangular prism has Six sides
rectangular prism
Two bases and three vertical sides make 5 faces.