A punch recipe requires 4/5 of a cup of pineapple juice for every 2 1/2 cups of soda what is the unit rate of soda to pineapple juice in the punch

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.