>> subtract. >> subtract, right. >> she's probably the oldest woman i've had in this class. and she keeps coming back. so i'm assuming she really wants to get this. brenda's working at a lower level. she didn't go very far in school. >> ain't been in school since god knows when, so a lot of this stuff i'm not up on. >> okay, so it's a difference again. right? >> subtract. >> subtract, good. >> she says she's really motivated this time. she's got a lot of work to go, a lot of -- i mean, she can't be working at third and fourth grade level and be ready to pass a high school equivalency in a matter of months. but maybe down the road. >> coming up -- >> all the new people that are coming in here are flocking to me. i don't know why. hopefully it's not for my commissary. >> sabrina monahan learns that having support from the outside can be body an asset and a danger in jail. and -- the emergency response team is deployed to remove a troubled inmate from his cell.