Which statement correctly describes the solution to this system of equations? -3x + 2y = -22
-5y = -4x + 27
A
There is no solution.
B
There are infinitely many solutions.
С
O
There is exactly one solution at (1,8).
There is exactly one solution at (8,1).
D

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.