Which expression can be used to convert 22 Australian dollars to US dollars?

Question

Which expression can be used to convert 22 Australian dollars to US dollars?

Assume 1.2 Australian dollars equals 1 US dollar.

$22 AUD × StartFraction 1.2 U S D Over 1 A U D EndFraction

$22 AUD × StartFraction 1 U S D Over 1.2 A U D EndFraction
$1.20 AUD × StartFraction 1 U S D Over 1.2 A U D EndFraction
$1.20 AUD × StartFraction 1.2 A U D Over 1 A U D EndFraction

Answer 1

Which expression can be used to convert 22 Australian dollars to US dollars?

$22 AUD × \left(\frac{1.2 USD}{1 AUD}\right)