Answer:
Well, you need to obviously know the cost of going to each of the colleges for all of them. Then you need to know how many colleges there are. For example there are 3 colleges, 1 costs 10 dollars, 2 costs 11 dollars, and 3 costs 12 dollars. You add them up and divide by 3 and you get 11 so your answer is 11 and you needed the number of colleges and their costs
PLEASE MARK ME BRAINLIEST :D
