If this is a former AP, she's no longer a part of the program. Therefore she's either a live-in nanny who can set her own rate, a live-out nanny who can set her own rate, or she's a sitter who may be working illegally. None of this tells us what her education or experience are, beyond her status as former AP.
For some, $10/hour is all they will command. Others will require $30/hour.