You have 80 pieces of fabric to make a wall hanging. each piece of fabric is a square with a side length of 5 inches. you use as many pieces of fabric as possible to create a square wall hanging.

what is the area of the wall hanging?

how many pieces of fabric are left over?

how many more pieces of fabric would you need to increase the size of the wall hanging?

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.