Quinn has never planned to pay Hots' tuitions... She just needs money (a lot) for something we don't know yet. That's why she agreed to sell coke... Riona tries to keep the business small but Quinn seems to need a lot more. Maybe she owes a lot to someone (Burke ? a drug dealer ? another guy ???).
Even Heather doesn't understand why the HOTS needs so much money and ask Riona about that.
Burke seems to be more than just a pervert.
We know why Quinn need money, she talked about it with Riona, she explained that they still don't have enough and later she also talked about it with Tommy, she clearly says that they need that money for their lifestyle and that Riona has smoked for free.
So they need money to get weed and other drugs they use in their party.
We can also learn at another moment who is taking part to the group of DIKs and HOTs who share that "lifestyle".
So Quinn tries to get as much money as possible to go to see her friends dealers and pay for what she has ordered.
At this occasion we can see where Quinn comes from and that she had to struggle to be accepted in college, she was a reject, and that she has created her restaurant to get money for drugs and other stuff, they also have to pay a fee as HOT for the house maintenance.
Quinn doesn't have a family to help her, she certainly got a free tuition by fucking with Burke or other sponsors just like Riona and other HOTs. And she's also a "business woman" who puts to "work" some selected HOTs.
About Burke, we know excatly who he is, when he fights with Jade we learn that he as fucked with three students and later during the preps party we can see that he had an "appointment" with Mona.
Later we also can see that he is in charge to distribute the free tuitions sponsored be the Wallace group to some students.
So 1+1= 2 !!! It's perfectly clear that Burke choose the girls who accept to fuck with him !
From Jade we also learn that Burke did not earnt his professor title, he bought it, so this guy is totally corrupted.
He sells free tuition, get payed with some fresh ass stuff, maybe he also pays Quinn who find the good candidates who will accept the deal.
This guy is obsessed by sex and young girls, we can even guess that it's him in the dorm restroom who got some meal from Riona and Quinn.
So it's not a surprise that Tybalt is also weird, fucking a melon with jill pic and her panty on it, he's just like his father, a pervert!