Answer:
x≥0.5
Explanation:
the circle is closed at 0.5, this means we use the greater than or equal to symbol, or the less than or equal to symbol. also, this means that x is greater than or equal to/less than or equal to 0.5 since the circle is at that point. since the arrow goes to the right, this must mean the values are getting larger, so x is greater than or equal to 0.5.