Hi there! The answer is ( - 7, 5)
The standard form of the equation of a circle is the following:

In this equation r represents the radius of the circle and the point (a, b) is its centre.
Therefore, the centre of the circle

is the point ( - 7, 5).
If you estimate, its around 5
The answer is 25.
Explanation: absolute value is always the opposite of the number inside the bars unless if the number is already positive, absolute value is always positive.