back when it was dollar for dollar, you could just remove 2 numbers to figure it out. i.e. 100 yen = 1 dollar 500yen 5 dollars etc.
but because of current exchange rates 100 yen is about 83 cents. You can still use the above method just add a little extra to what you'd get.
The Australian dollar has been trading above parity for many months, and is expected to remain higher than the $US for some time further to come.
Therefore, as of April 2012, $100 Australian dollars converts to $ 102.6062 in US 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As far as specific exchange rates, they change every day so any answer posted here would be out of date almost immediately.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.
123.63 AUD, as of July 21, 2009 AD at 12:22 GMT
Check www.xe.com for update currency exchange.
there is no such thing as 9 pounds 99 in Australia as Australian currency consists of dollars and cents. However A$9.99 us worth about US$9.40 on April/7/2010
About $110 Australian Dollars.
99 UK Pounds = 149.16 US Dollars
8000 US Dollars is 8625.36 Australian Dollars
$1802.61
As of today (June 30, 2009) 1,000,000,000 US Dollars = 1,239,690,000 Australian Dollars
As of 30th June 2009: 1 Australian Dollar = 0.81 US DOllars 1 US Dollar = 1.24 Australian Dollars
As of 30th June 2009, $15 (Australian) = $12.11 (US)
1 Australian dollar = 1.0264 US.
$99 is £81.58
£275
Right now (December 30, 2010) 44.00 Australian dollars are 44.6864 US dollars.