Answer:

Step-by-step explanation:
we require 2 equations with the repeating digits placed after the decimal point.
let x = 0.888.. (1) ← multiply both sides by 10
10x = 8.888.. (2)
subtract (1) from (2) thus eliminating the repeating digits
9x = 8 ( divide both sides by 9 )
x = 
230 times .30 is 69 so sub that from 230 you get 161
$22 AUD * 1 USD / 1.2 AUD
Hope that helps