Which equation can be used to solve for x in the following diagram?

Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

Need ! give step by step solutions on how to solve number one \frac{9-2\sqrt{3} }{12+\sqrt{3} } number two x+4=\sqrt{13x-20} number three (domain and range) f(x)=2\sqrt[3]{x} +1

Negative 5 1/12 + negative 4 1/4 + 6 3/4