Economics Help Please
So I have a midterm tomorrow and I just want to do some practice problems. The problem is my book has problems, but no solutions, so it's pretty useless to do the problems in the book. Could anyone lead me to a place where I can do some practice on:
1. Taxes and Subsidies
2. Price floors/Price ceilings
3. Externalities
4. Profit Maximization w/ competitive firms.
If you're wondering, this is microeconomics.
February 19, 2013