Which expression can be used to convert 80 US dollars (USD) to Australian dollars (AUD)? 1 USD is equal to 1 point 0 3 4 3 AUD 1 AUD is equal to 0 point 9 6 6 8 USD

Use the exchange rate 1 USD = 1.0343 AUD as a conversion fraction: (1.0343 AUD)/(1 USD). Multiplying 80 USD by this fraction cancels the USD units and leaves the result in AUD. Therefore, the correct expression is 80 USD times 1.0343 AUD divided by 1 USD.

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