If h(x) = x – 7 and g(x) = x2, which expression is equivalent to (5 – 7)2 (5)2 – 7 (5)2(5 – 7) (5 – 7)x2

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.