Kingsbridge Flower Shop received 56 different orders. Each order contained 64 flowers. How many flowers do they need to fulfill all of the orders? If each order costs $5, how much money will the Flower shop make?

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.