Solve the quadratic equation. (x + 3)2 = 64 a) x = 5 or -11 b) x = 11 or -5 c) x = ± 3 d) x = ± 11

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.