Your school club is making cookies for an upcoming school dance. On the morning of the dance, your group
makes 6 batches of dough that yields 21 dozen cookies. In the afternoon, your group makes 8
batches of dough that yield 28 dozen cookies.

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.