The greatest possible number of points of intersection of 8 straight lines and 4 circles is:

Thegreatest possible number of points ofintersection of 9 different straight lines &9 different circles in a plane is

Write the maximum number of points of intersection of 8 straight lines in a plane.

Find the maximum number of points of intersection of 7 straight lines and 5 circles when 3 straight lines are parallel and 2 circle and concentric.

Find the maximum number of points of intersection of 7 straight lines and 5 circles when 3 straight lines are parallel and 2 circles are concentric

The maximum number of points of intersection of 8 circles is