cydney built a display stand out of two cubes the larger cube is 8 inches on each side the smaller cube is 4 inches on each side she painted the display stand after she put the two cubes together she did not paint the bottom of the display stand what was the total area she painted

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.