Richard recently finished college and is about to prepare for his exam to become a certified public accountant he wants to talk to other accountants to learn how best to prepare for this exam which professional organization would be most helpful for him to join?

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62

Order the measurements from the least to the greatest. 2,720 ml , 24.91 l , 0.0268 kl

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.