Whether you're going to or coming back from Australia, you'll likely have currency to convert. Today it's easier than ever to learn the conversion rates of international money thanks to online calculators. Here's a guide to convert Australi. Decades ago the U.S. dollar was backed by gold -- a mineral that is valuable because people believe it is valuable. The same is true of the U.S. dollar, whether it is backed by gold or not. People accept dollars in payment because they beli. Currency values change, so a dollar isn't just worth a dollar all the time. Sometimes dollars are worth more, and sometimes they're worth less. Here's why. We're so used to carrying and exchanging the American dollar bill, we rarely take a.
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