[" The number of common tangents to the circles "x^(2)+y^(2)-4x-6y-12=0" and "],[x^(2)+y^(2)+6x+18y+26=0," is "]

The number of common tangents to the circle x^(2)+y^(2)-4x-6y-12=0 and x^(2)y^(2)+6x+18y+26=0 is

The number of common tangents to the circles x^(2)+y^(2)-y=0 and x^(2)+y^(2)+y=0 is

The number of common tangents to the circles x^(2) + y^(2) = 4 and x^(2) +y^(2) - 6x - 8y -24 =0 is,

The number of common tangents to the circles x^(2)+y^(2)-y=0and x^(2)+y^(2)+y=0 is

The number of common tangent to the circles x^(2) + y^(2) + 4x - 6y - 12 = 0 and x^(2) + y^(2) - 8x + 10y + 5 = 0 is

The number of common tangents to the circles x^2+y^2-y=0 and x^2+y^2+y=0 is :

The lengths of the common tangents of the circles x^(2)+y^(2)+4x=0 and x^(2)+y^(2)-6x=0 is

The number of common tangents to the circles x^2+y^2=4 and x^2+y^2-6x-8y-24=0 is