a campus club has decided to throw an end of semester party, provided that each person who attends shares equally in the expenses. A four person student band will play for $150 as long as they get free food and drink. The club members estimate that the average cost of drinks and food will be $2 per person. Suppose n people (including the band) attend the party. Let C(n) represent the total cost of the party. Find the equation for C(n). Now write the equation for A(n), the average cost per person of the paying guests (remember the band doesn't pay).