Should a 17 year old be treated this way?

So I have a friend who is 17 years old and we want to know if this is normal. She just graduated high school and around our town it is hard to find a job if you are not 18, she has put in applications at many place, made calls constantly and still nothing. On the day of her graduation her step dad tells her that they aren't giving her anymore money and she has to pay the insurance on the car she drives and that they aren't paying her phone bill anymore. Her mom occasionally gives her money but everytime they have a disagreement her mom throws it in her face and makes her feel like ****. So she doesn't take money from her anymore. When her and her mom get into an arguement about something her mom constantly talks over her and threatens to hit her with a bottle or to "beat her ***". Do you guys think that it is right? She is a teenager and teenagers of course have attitude problems but do you think it is right for them to basically throw her to the dogs? They always tell her how lazy she is and that she doesn't do anything, but she basically is the only one that cleans.