The surface area of a sphere is given as:
[tex]SA=4\pi r^2[/tex]Then in this case the surface area is:
[tex]SA=4\pi(13)^2=676\pi[/tex]The volume is given as:
[tex]V=\frac{4}{3}\pi r^3[/tex]Then the volume is:
[tex]V=\frac{4}{3}\pi(13)^3=\frac{8788}{3}\pi[/tex]