Hi Cage - I downloaded the file to have a look at what level electronics you're doing. Sorry, but I can't in good conscience give you the answers you want - in fact it's not the answers that are important here but the method! If you don't try the problems you won't learn the method
sorry dude!
Asking for answers on the net isn't the way to go.
I DO want to say "thanks" however for the trip down memory lane - we did these kinds of problems back in the very first semester of my Electronics & Communications course in 1982, so it was quite a sudden flashback to see them in black and white again. Branch analysis, source transformations, etc - wow!
I think you'd best admit to your teacher/lecturer that you don't know how to do this stuff and ask for help, or cop the "fail" sweet as the price of "not having studied or attended class" as you freely admit.
Good luck with your future studies.
