Write each of the following as a number.1) five thousand, one hundred twenty and five hundred two thousandths.2) nine million, ninety thousand, nine hundred and ninety-nine ten-thousandths3) four hundred sixty-eight thousand, forty-six and fourteen thousandths.

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.