Possibility of a spade given a 2

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?

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?