7/2,16/6 tell whether froms a proportion

Find the missing factor. write your answer inexponential form.9^2=9^4×

If wxyz is a square, which statements must be true?

Plzz ! 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? yes or no? = explain your mathematical thinking/show your work: