The function f(x) = 4(2) ^x represents the number of people who share a cat
video x hours after it first appears on a website. how does the number of
people sharing the video change each hour?

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.