In the past 4 years, a sporting goods store had two yearly losses of $140,000 and $56,000 and two yearly profits of $110,000 and $60,000.
what was the net profit or loss over 4 years?
a.
$196,000
b.
$26,000
c.
$170,000
d.
–$26,000

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.