You must have over 110 points at the least. You cant go below 100 because then you loose some funadvice privledges. So anything over 110 which would equal $1, but its better to wait until they add up a bit. A check for one dollar isnt worth it.
i believe minimum is 100 points, which is 10 US dollars. so id assume it is 100 points minimum
More than 100. You can't cash out and put yourself under 100 points.
I believe you need more than a hundred before it will work