He can expect his insurance rate to go up now... He could go to court & contest it if he wants to, it's his right. My own brother has done that on a couple occasions & each time, his tickets were dropped because the officers who wrote the citations didn't show up for the court hearing. Tell your brother to try that & if it doesn't work out, he's gonna have to pay... and... Sloooow dooooown from now on!! 8)
Accept responsibility for his actions and deal with the consequences. Due to his age, there will be several consequences. Higher Insurance, possible suspension of license until he takes a retraining class, fees and the wrath of your parents. Easier just to drive the speed limit at that age.
Pay it. Otherwise one day hell be arrested, thrown in jail and have to pay an even bigger fine and possibly get his license suspended. The ticket he got should tell how much to pay and where. Also whomever is paying his insurance should prepare for the premium to go up.
Go to the court meeting for it. If the cop doesnt show it is dropped. If he does you can just say you are guilty and they often lower the offense to something like having a light out. Could save points on the license and insurance cost but you would probably have to pay court fees depending on the location, which should only be $50-$100.