There are 48 red pencils in a bag. The number of red pencils is 34 of all the pencils in the bag. What is the total number of pencils in the bag?

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What is the ratio of the length of an object in yards to the length of the same object in miles?

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.

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