The radius of the large sphere is double the radius of the small sphere. how many times is the volume of the large sphere than the small sphere? 2 4 6 8

Ineed solving this problem h/8=-25 solve for h idk how to this can someone show me and also give an answer you

It says factor each expression 49x-28?

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex