Few questions, please.....

I am not an expert in GW, but i like the game very much. I have a few questions regarding something i saw in the game and i don't have the answers. Please help me! Thank u!
1. Where can i see the total damage that my Ranger does?
2. I canot drop some of my items. It's stay's there in my backpack and i cannot get them out, drop it, i mean. Why?
3. What is my best second profession for my Ranger?
4. I have the Grey Giant. What it does? Just stay beside me and do nothing?

...... so far ..... that's it. Thank you againg!

1: When you attack an enemy, you'll see a yellow number comes up. That's the damage you're doing.
2: Some item cannot be drop or trade, just drag and drop it into the bin. In your inventory, on the far right next to the last bag is the bin, it's in grey color.
3: Depend on your build, monk or ritualist are rather popular.
4: Yep. The mini pet is just that for show, nothing more nothing less.

1. There's no in-game calculator that does it for you. You can calculate it using various damage formulas however. (wiki article should be the most up-to-date )

2. There's a trashcan next to your bags in your inventory. Drag the items in there.

3. No best profession. Pick one, you can always change later, and decide for yourself.

4. Grey Giant is a minipet. Does nothing, just being pretty.

Thank you very much! .... both of you .......... 10x