English is the primary language spoken in Australia, though Mandarin is also a very common language, specifically in Sydney, due to a large portion of the population being from China. Many different Aboriginal languages exist as well, although they are less likely to be heard in the cities and depend on which region of Australia you are in.
The Australian Dollar is Australia's currency. Currently, $1AUD is about $0.70USD. The Australian dollar is currently at a high point and is expected to continue to rise in value.
I found a 600ml bottle of water that cost $2.45 AUD, which comes out to roughly $1.72 USD. The prices for products in Sydney are generally more expensive than back home.
This week I had a very good serving of fish and chips from a local restaurant. Originally from Britain, fish and chips are an extremely popular snack in Australia, and they can be found at many restaurants and stalls throughout the country.