Solve Calculus Problems For Free

I really need help with my math hw but my idiotic teacher only gave us even problems, claiming it will “boost” our understanding. I see her point but Chapter 7 is extremely difficult and I have already attempted to solve the problems the way she wants us to. I’ve gotten a few, but there are way too many questions and this is taking me ages… Does anybody have a username/password I can use for cramster.com that is a premium account and that I can use (only until this chapter is over, you can change the pw or something after that!) or a site/file for the teacher’s edition solution manual with even problems??? THANKS!!!