Help Kotlin

Question

You are working on a eCommerce website and need to make a shipping cost calculator based on the order amount.
The store uses the following cost structure:
For orders in the US:
- $75+ orders have free shipping
- orders less than $75 have a shipping fee of 10% of the total order amount.

For international orders, there is a 15% shipping fee, with a maximum of $50. This means that the maximum shipping fee for an international order is $50.

You need to complete the given shippingCost() function, which takes the order amount and a Boolean indicating whether the order is international or not, and returns the shipping cost for that order.
The return amount should be a Double.

Sample Input:
140.0
true (true - international orders, false - usa)

Sample Output:
21.0

It's my second day learning, sorry for bad code

https://code.sololearn.com/cp9TA7JKUe17/?ref=app

Answer 1

Its working, but if input (199.9, true) output - 29,9850000000003
Need 29,985
How can I solve this?

Answer 2

Where do I write it ? Main ?

Answer 3

No, it doesn't work. Now all the answers look like 0.000, but some answers must be 0.00 and output error
Thanks for your help