There are 300 students from Central High School at the football game. Of the 2 300 students, 30 are in the school band. An equal number of band members
• rode to the game in two buses. How many band members were in each bus?

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.