Which solid has two flat circle bases and a curved surface

How is the number of vertices for a prism related to the name of the prism

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.