The first picture.
The length of the base is horizontal and extends to 2b.
Therefore the coordinate of N is (2b,0)
I think it would be the first
Answer:
"It is not a solution because 9 is not greater than 9."
Step-by-step explanation:

If x is 9, then the inequality would be untrue because x must be GREATER than 9 not equal or greater.
Answer: I: (3, +infinity) D: (-infinity, 3) (this is the fourth answer)
Step-by-step explanation: The graph is decreasing left to right until 3, and begins to increase from left to right beginning at 3.