Short Answer: A
The largest point 7.5 is not included in the inequality.
The answer should end in an open circle. That means the answer is either A or C.
That eliminates B and D which do include the end points. The equation must be written as 7.5 <= x for either B or D having a chance of being right.
Since the largest number than can be in the inequality is 7.5, the line must head left. When it does and has an open endpoint that's the answer. Only A fulfills both conditions.
A <<<< answer