Help me with this please

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

Is ofat (-25, 0), (25, 0) co- (0, -15), (0, 15)?

Which equation has a constant of proportionality equal to 9