Which of the following pairs of functions are inverses of each other?

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).