The solid is made up of three cubes resting side by side. What is the surface area of the solid?

A solid made up three cubes. A 12 inch cube, a 6 inch cube, and a 3 inch cube. The cubes are aligned along the bottom of the solid and the front face of the solid.

You will get 25 points an image of a rectangular prism is shown below: part a: a cross section of the prism is cut with a plane parallel to the base. what is the name of the shape created by the cross section? explain your answer. (5 points) part b: if a cross section of the prism is cut perpendicular to the base, what would be the shape of the resulting cross section? explain your answer. (5 points)

Which of the following graphs represents the function f(x) = 2^x

Need on this geometry question. explain how you did it.