"Greed is good" quest help?

Hey, I was just wondering if anyone had the answer to this quest? I only need the last one to complete the set.

I'm completely stumped, so any help would be appreciated.

And if it's not to much trouble..maybe you could post the answers to the whole quest in spoiler tape, instead of just the one. that way if anyone else comes along, and is curious as to the answers. they can just help themselves..