To La answered 9/15/2011 What Ways Can You Make A Dollar Out Of 21 Coins? Correction to a couple of the other answers:There are only 5 answers using US coins currently in circulation:H-Q-D-N-P1-0-2-3-150-2-3-1-150-1-3-7-100-0-7-4-100-0-3-13-5