Write the unknown digits. use each digit exactly once. 46 x 93

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Aline that intersects one of two parallel lines intersects the other also always sometimes never

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.