What is the nearest ten for the point shown on the number line below?

If m 17 27 90 63 ** picture is attached

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

Do you mind if you guys me with this question i’m on number 8