Can someone please help me with this, it’s urgent!!!

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)

If you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no. explain your mathematical thinking

How can you check that you have correctly converted frequencies to relative frequencies?