thanks already for reading, and if you can help me out, even more thanks!
My teacher surprised us today with extra credit homework. He said we can ask anyone for help. He thinks that not too many people will be able to solve his problems.
I will list them all and number them. If any one of these equations look like you can do it, feel free to post the answer and the corresponding number, so that questions won't be answered twice.
Thanks so much!