Aaron would like to inform a customer that she has not paid her bill. aaron should

-Call and leave a rude voicemail

-Do nothing and accept the fact that he won't get paid

-Write a polite business letter informing the customer of how much she owes

-Jot down a note and leave it on her door

Write a polite business letter informing the customer of how much she owes

Explanation:

Considering the options, the best way for Aaron to inform a customer that she has not paid her bill and that would be polite, professional, provide a good image for his business and that can help him to get his money is to write a polite business letter informing the customer of how much she owes

.

The other options are not right because call and leave a rude voicemail would be impolite and povides a bad image, do nothing and accept the fact that he won't get paid would make him lose money and jot down a note and leave it on her door is too informal and could get lost.