Good Job! Homework #6 Done!
About Question #3:
Two lines can quickly be discarded here: fold and raise/fold; your hand is simply too strong for those alternatives.
It's hard to assess whether you should put in a raise here. When a rather passive player decides to bet into three players while being out of position, it does look strong. It's more likely an indication of a made hand than that of a draw.
A raise naturally protects, but you run the risk of isolating yourself against very strong range. Which weaker hands could your opponent possibly continue playing here?
The deciding factor finally comes in the size of the pot. This tiny pot simply isn't worth putting yourself into a tough spot where you could potentially end up risking your entire stack. A raise would be overplayed here and pot control takes the precedent over protection.
Best of Luck on the tables and with the Course. Some more points earned.