How many times does 18 go into 756?

I'll give brainliest if you answer right : )

Which expression is not a polynomial?

Find the equation of the ellipse with the following properties. the ellipse with foci at (0, 6) and (0, -6); y-intercepts (0, 8) and (0, -8).edit: the answer is x^2 over 28 + y^2 over 64 = 1