How much is an American 100 dollar bill worth in Australian dollars?
In 2013 the US and Australian dollars were roughly at par, meaning that within a few cents, one USD was worth about the same as one AUD.
As far as specific exchange rates, they change every day so any answer posted here would be out of date almost immediately. While it's not normal WikiAnswers policy to say "use the Internet", that's the best approach in this case. You can check a site such as www.xe.com, CNNMoney, etc. for the latest conversion factors.
America use American dollars and Canada use Canadian dollars and also the Canadian dollar is worth less than the American dollar example: 1 American $= 1.25 Canadian $ please note, this is not the actual currency rate there are also Australian dollars which are stronger than Canadian dollars but weaker than American dollars
No. Only the 1988 and 1989 Australian 2 Dollar coins have HH on them. HH is the initials of the designer (Horst Hahne) of the reverse side of the coin. All years of the Australian Two Dollar coin are potentially still in circulation and are therefore worth Two Dollars, unless they are Mint Uncirculated or Proof coins. The initials do not make the coin worth any more or less.