Given the equation of the circle (x – 9)2 + y2 = 484 , where is the center of the circle located at?

Answer 1

centre is at (9,0), radius = √484 or 22

(use ^ to indicate an exponent such as
(x-9)^2 + y^2 = 484

Answer 2

Which equation can be used to find the volume of a sphere that has a radius of 9 inches