A ball is dropped from a height of 20 feet. With each bounce, the ball's peak height is 50% of the
previous peak. Identify the peak height after each of the first three
bounces:
Height after one bounce:
feet
Height after two bounces:
feet
Height after three bounces:
feet

In each bouquet of flowers, there are 2 roses and 3 white carnations. complete the table to find how many roses and carnations there are in 2 bouquets of flowers.

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart