An expense that changes
The price varies
The cotton gin is a machine that easily separates cotton fibers from their seeds.
Answer
provide proof of residency
Fill out a form
Register before a given deadline
Explanation
A voter is a person who votes or has right constitutionally to vote at an election. He/she plays a central role in shaping the the government and their future. This is by electing the leaders who are going to represent them. For instance In a representative democracy voting is the method by which the electorate appoints its representatives in its government. In every elections voters are required to provide a proof of residency which is a document that proves where you live. and it is only used when they are registering to vote. Should also register before a given deadline and fill out a form.
It is a good idea to aid these people because when they are in these conditions, it becomes harder to provide for themselves. Help from the government would be more than they could ever ask.
Hope this helps you and good luck, friend! :)