Select the correct answer from each drop-down menu. Write the functions represented by the graphs.
f(x)=_. |x+1|, |x|, -|x|.
g(x)=_. |x|-2, |x-2|, |x|+2.
h(x)=_. |x|+3, |x+3|, |x-3|.

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

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.