Yes, I'm blogging to avoid finishing this problem set.
Anyway, one question asks: "Can you find a set of subsidies such that the optimum is achieved and all individuals contribute to an equal number of units?"
Let's say I am unable to solve the problem. My answer to this question would be "No, I can't seem to find it".
But that's the right answer to the question asked if I fail to get an answer! Do you think I would get points for it?