Yes, students do experience more sleep deprivation than other non students because most students stay up late at night studying for pop quiz's, exams, etc. They're probably staying up doing homework, projects, make-up work, etc. They might also be stressed out which will cause most of them to be awake at night thinking about what they are stressed out about. While other non students don't have to really worry as much as these things because they aren't in school anymore.
Answer: $4.00
Explanation: It would cost Student 1 a total of $17 and for student 2 it would cost $21.
Just subtract 17 from 21 and u get ur answer :)
I would say some people take, individual differences too personally, and then conflict starts, people fight, argue, even start wars.