Write bill_with_gst(prices) that adds up the prices, adds 18% GST, and returns the total rounded to 2 decimals.
bill_with_gst([100, 200]) → 354
bill_with_gst([]) → 0
Submit runs 4 tests, including hidden edge cases.
Each hint gives a little more help. Try on your own first.
Run your code to see the output here.