Which statement gives the reason why the following is NOT a polynomial? \large \left(\frac{1}{2}\right)x^5+2x^6-8x +x^{-9}

a
You can't have a fraction for a coefficient in a polynomial.
b
You can't subtract terms in a polynomial, you can only add.
c
You can't have a negative exponent in a polynomial.
d
It's not a polynomial because it's not in descending order.

When you dilate a figure with a scale factor of 1/2, what will the dilated figure look like?                                                                                           a: the dilated figure will have side lengths that are half the length of the original side lengths.                                                                          b: the angles in the dilated figure will be half the measure of the original figure.                                                                                c: the dilated figure will have side lengths twice the length of the original.