http://ca.answers.yahoo.com/question/index?qid=20131027134934AAQQUWp I really need help. All the information is on that link. I've spent 30 minutes or so trying to figure this out but I can't and I'm starting to get really upset. If you guys can find the value of k, I can take it from there. I just have no idea how to find k and it's stressing me out so much.