To convert 80 US dollars (USD) to Australian dollars (AUD), we need to use the conversion rate between these two currencies. According to the information provided:
1 USD = 1.0343 AUD
Given this conversion rate, we need to multiply the amount in USD by the rate to convert it to AUD.
The appropriate expression to perform this conversion is:
[tex]\[ 80 \text{ USD} \times \frac{1.0343 \text{ AUD}}{1 \text{ USD}} \][/tex]
Using this expression, the conversion can be calculated as follows:
[tex]\[ 80 \text{ USD} \times 1.0343 = 82.744 \text{ AUD} \][/tex]
Therefore, the correct expression to convert 80 US dollars to Australian dollars is:
[tex]\[ 80 \text{ USD} \times \frac{1.0343 \text{ AUD}}{1 \text{ USD}} \][/tex]
