An insurance company sells a policy that pays $50,000.00 in case of accidental death. according to company figures, the rate of accidental death is 47 per 100,000 each year. what annual premium should the company charge for this coverage?

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.