PLEASE HELP I'M TIMED. 95 POINTS

Which one ? is the answer and how to find this answer

What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet

Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?