1. Make a box-and-whisker plot of the data. (1 point)
21, 21, 22, 20, 13, 13, 27, 24
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10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Which statement justifies why angle ebc measures 90?

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.

Which statement is true about the function f(x)= square root -x ? the domain of the graph is all real numbers. the range of the graph is all real numbers. the domain of the graph is all real numbers less than or equal to 0. the range of the graph is all real numbers less than or equal to 0.