Find the center and radius of each circle:
1) (x-2) ^2+(y-3) ^2 =9
2) (x-1)^2+(y+5)^2=4

The equation of a circle is (x-h)^2+(y-k)^2=r^2, where (h, k) is the center and r is the radius. 

1) Center= (2, 3), Radius= 3

2) Center= (1, -5), Radius= 2

Hope this helps:)

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