A conjunction needs to be added to a sentence in order to prevent a comma splice. A conjunction is a "connector word;" they are for, and, nor, but, or, yet, and so. Two independent clauses (sentences) cannot be hooked together by a comma; they can only be connected with a semicolon or made into to individual sentences. However, you can connect them with the appropriate conjunction.
For example: I would love to go to the movies, but I have a lot of homework to finish this weekend.
If a sentence needs a pause in the middle and a comma is not strong enough, then a semicolon can be used.
Yes it needs a comma after voter
In general, no, but there are some situations in which using a comma after "but" is correct. If the word "but" is followed by an expression that needs to be set off by commas, then you would put a comma after "but" and another comma after the expression. Here is an example: I was going to say no, but, because you have presented such a persuasive argument, I have decided to allow it. An example of a more typical sentence using "but", where there is a comma before but not after "but", is the first sentence in this answer.
No, it is a complete sentence, but it needs punctuation (comma, semicolon) or it becomes a run-on. "You stopped, she didn't." "You stopped; she didn't."
No, a comma is not needed before "according to" at the end of a sentence. This phrase is typically used to introduce information or a source, and it does not require a comma when placed at the end of a sentence.
the word Listen needs quotation marks and there should be a comma after the word room.
A subject
No. Inc. is the abbreviation for "incorporated" and it needs to be set off by a comma and followed by a period. If however the sentence continues after the "Inc." there needs to be a comma after the period. For example: Name of the Employer: ABC Company, Inc. She works at ABC Company, Inc., where she has been working as an administrative assistant.
The word "also" does not require a comma after it, but it depends on how it is used. This sentence does not need a comma after "also": Implementation of the Proposed Project also would enable NID to meet future needs.
it needs a comma
There needs to be a comma placed after the word "frosting."
This sentence needs commas: Packing, moving, and unpacking are exhausting. Note that the second comma is considered optional, although individual guidelines and style sheets will specify either including or omitting the comma before the last item in a series.