Answer
The sphere with the larger radius has a surface area 9 times larger than the other sphere and a volume 27 times larger than the other sphere.
Work Step by Step
$\frac{S_1}{S_2}$=$\frac{4\pi (3r)^2}{4\pi r^2}$
$\frac{S_1}{S_2}$=$\frac{36\pi r^2}{4\pi r^2}$
$\frac{S_1}{S_2}$=9
$\frac{V_1}{V_2}$=$\frac{\frac{4}{3}\pi (3r^3)}{\frac{4}{3}\pi r^3}$
$\frac{V_1}{V_2}$=$\frac{27r^3}{r^3}$
$\frac{V_1}{V_2}$=27
