In America the size of a
typical home has
increased from 1100 ft?
to 1800 ft? over the past
ten years. Find the ratio
of house area today
compared to
ten years ago.

Which expression is equivalent to 2^4y^3

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.

Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?