Find the piece wise function ​

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

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

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)