Answer:
2
Step-by-step explanation:
<h2>
Answer</h2>
The expression is

<h2>
Explanation</h2>
Step by step conversion is as following;
1 USD = 1.38 AUD, or its reciprocal
Where,
1.38 recent currency rate
AUD = Australian dollar
USD = US dollar
So, by rearranging

Then

The answer is

Answer: 20.67
Hope it helps