Comet Lee borrowed $$16,000$ on a $6\%,90-$day note. After $20$ days, Comet paid $$2,000$ on the note. On day $50,$ Comet paid $$4,000$

on the note. What are the total interest and ending balance due by the U$.$S$.$ Rule? Use ordinary interest:

Note: Use $360$ days. Do not round the denominator In your calculation and round your final answers to the nearest cent.

Total interest

Ending balance due