Here you are Key of Ch 5 Exercise.
BTW, as Quiz 3 is only 20 multiple choice questions, it would take only 50 minutes. The next 2 hrs, I will continue with lecture of Ch 6. I would send slides within the next few days or by this week end.
I don't want to waste time during the course. In this case, I may finish course 1 week earlier, if possible, to return thanking for all your efforts. Cheers.