One vendor at a craft fair wants to earn $1,200 selling various items over a weekend. The following function can
be used to model the average selling price of x number of
items.

f(x) = 1200/x

The mathematical domain of this function is all real
numbers except 0. Which statement describes how the reasonable domain compares to the mathematical domain?

If f(x) = 4x – 3 and g(x) = 8x + 2, find each function value a.f[g(3)] b.g[f(5)] c.g{f[g(-4)]}

Find the smallest number by which the given number should be divided to make a perfect cube(with steps or the answer will get reported) a.108 b.2187

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.