Find the Cartesianinequationfor the region represented by

abs(z+9-9i)<=1/7*abs(z-3-2i)

Please put your answer in a "natural" form

What is the centre of that circle for real numbersx,y

What is the radius of the circle

The locus of points satisfied by the relation is

If any one knows where there are good online math resources to do with cartesian inequations can you let me know

Thanks