Answer:
i think is D
i hope it’s help you but if not DO NOT FORGET STAY SAFE AT HOME
A = 9*14 + 12*8
A = 126 + 96
A = 222 m²
You just have to add the areas of the two rectangles.
Hope this helps !
Photon
A. Since the area of a triangle is equal to A = 0.5bh, we just plug in numbers given to us:

So, that's your answer.
B. The answer is a
2nd-degree trinomial because it has three terms and it's highest exponent is 2.
C. Polynomials are closed under multiplication because if you multiply two polynomials, you get another polynomial (except if you multiply by the inverse which is excluded anyways).
I need more information to help