Nancy has a phone plan that she pays $60 a month for. She gets 30 GB of data included, but if she goes over, she gets charged an additional $3.95 per GB. If her bill comes out to $87.65, how much data did she use in all? (Just write the number in the answer box)

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.