Answer: C
Step-by-step explanation:
We know that
, and thus by the exterior angle theorem,

Thus, 
The answer is 16 I think because 2*2=4*5=20-4=16 so I think 16 is the right answer
Answer:
Step-by-step explanation:
My drawing tool is Desmos. It can be used at no cost.
the graph will not work unless you combine -2x^ and -4x^2 to give - 6x^2.
If you try and graph it as given, you get a straight line going for quadrant 4 to quadrant 2.
But you will note that when you make the addition of the 2 middle terms, it gives you the graph that I have enclosed, which is the one you should expect. I'm wondering why you get a straight line when you try and graph what you were given.
Answer:
it would already be 5.5 so then you add 2.2
Step-by-step explanation: