Answer:
A
Step-by-step explanation:
Answer:
the answer to the question is D
ANSWER
A) -20x²+14x+12; all real numbers
EXPLANATION
The give functions are;

and





This is a polynomial, hence the domain is all real numbers.
It would be a trapezoid because parallelograms have the top and bottom usually the same number.
7(2)=14
14+7=21
So the answer is 2.