9514 1404 393
Answer:
c > -2
Explanation:
We see that 4 has been added to c, and the sum multiplied by 2. Undoing these operations in reverse order, we first divide by 2:
c +4 > 2
Then we subtract 4:
c > -2
This does not include the "equal to" case, so the circle at c=-2 is open.