The table shows the relationship between the number of bracelets made and the number of beads used: number of bracelets number of beads 3 24 5 40 7 ? 9 72 the number of beads used to make 7 bracelets is

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.