[SOLVED] Finding the Break Even Equation

I'm not sure where to start on this question. Here's the scenario:

"You are hosting a convention for a charitable organization. You pay a rental fee of $22,900 for the convention center, plus you pay the caterer $14 for each person who attends the convention. Suppose you just want to break even."

The question I'm stuck on is:

(a) Use a formula to express the amount you should charge per ticket as a function of the number of people attending. (Let C be the amount charged per ticket (in dollars) and n the number of people attending.)

I know I can figure out the other parts (__b__-graph formula (a), __c__-find how many must attend if ticket price is $47). I'm just stuck on (a). Any help is appreciated! :)