I don't get what a protagonist is... Please help.

It's the main character. Here is the definition, which you can find for yourself for any word you don't understand by typing that word in your browser.

http://www.merriam-webster.com/dictionary/protagonist

Thank-you very much

I still don't understand. Is it the good guy or the bad guy. That's the part I am confused on

There can be more than one main character in a story. It's usually the good guy, though. We like it when good triumphs over evil. Sometimes it might be a couple (married, dating, whatever) who are the protagonists. Other characters who come and go in the lives of the main characters are not the protagonists. It might be two characters working together, both being protagonists (together). Does that help?

Do you know when the tutor will come to help? I have math final tomorrow and this is the only problem that I don't understand.

I am a tutor here. Sometimes both the good and bad guys are protagonists. If they dominate the action of the story more or less equally, they are both protagonists. The key is the MAIN character (or characters if they are of equal importance to the story).

That does help. So if the protagonist is the "hero" of the story so the antagonist may be the guy against the protagonist right? Also Chingnong you need to be patient. I am sure somebody will help you before your final tomorrow

Chingong, post your question separately and use the word "Math" as your school subject. A math tutor will see it. I'm not a math tutor. I tutor in English and social studies.

Oh, ok. Sorry about that. I am new to this site. Thank you for the information. But the only problem is I have been waiting for half an hour.

Yes, you have it now. :) But, again, the key is the MAIN character (or characters). Usually, yes, that is the hero.