Jordyn took a taxi from the airport to her house. she paid a flat fee of $5 plus $3.70 per mile. the fare came to $42. for jordyn's taxi ride, which equation gives the correct distance (d)d in miles? ( put it in an equation! sm! correct answer will get 14 points! )

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.