Find the measure of b. A. 63 B. 27 C. 31.5 D. 126

Hey free points ! people i have a few math questions on my profile consider looking at them i have to get done in 30 mins!

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.

Compound inequalities. , i’m being timed