I need help with this question, there are no data set so it’s asking to create your own

Show all work to identify the discontinuity and zero of the function f of x equals 6 x over quantity x squared minus 36

If you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood?

What is the inverse of the function below? f(x)=x/3-2