Amy is a college student who works two jobs on campus. She must work for at least 5 hours per week at the library and two hours per week as a tutor, but she is not allowed to work more than 25 hours per week in total. Amy gets $15 per hour at the library and $20 per hour at tutoring. If Amy needs to make $283, what is the minimum number of total hours she can work to meet her goals? Round to the nearest tenth of an hour.
