Here is one way to do it. See the attached image.
Answer:
B. A numerical expression
A right triangular prism is a solid that has faces that consist of 2 equilateral triangles and 3 congruent rectangles. It is also described to have two parallel faces and 3 other faces that belong to the same place (and are not parallel to the parallel pair of faces).
You didn’t post an image of the graph..