A store advertises that customers can take % off the original price and then take an extra % off. Is this the same as a % off discount? Explain.

Based on the figures as marked, /\rqs = —

Ihave trouble finding the nth term of a linear sequence

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.