IDK how they do it in Utah.

great broker question to break it down for you on paper

This sounds like a question for your Broker or teacher

Depends on the transaction and who is involved.

As defined by the agency agreements and job specifications.

Buyer an Seller

Your role depends on who you are representing. I could write a short book here about your role in the transaction. Good luck in your studies. Don't let the snarky answers scare you away from asking more questions. 

Buyers buy the house, sellers sell da house agents make sure it all works smoothly.

Getting the sale to the closing table.

We all share a common goal of getting the transaction successfully closed! Those that do not should step back and seek another option.

Others have  answered.

Harry F. D'Elia nailed this one!

Follow the terms of the agreements.

What a great question to start our RE career. Which school you are in?

Bryson Lawrence It is well-defined. Buyer, seller, buyer's agent, seller's agent, buyer's attorney, seller's attorney etc.

There are a minimum of 12 and as many as 30 people involved in a single deal pending what part of the world and type of deal it is. That's a question that needs some brackets 

It depends upon the jurisdiction as well as the terms of any agreements between the various parties.

There are many players in a transaction and the ultimate goal of all of us it to get the property closed quickly with as little hassle as possible. It can happen if everyone does their part of the job.