Answer :
N(p) = 60p - p^2
N(9) = 60(9) - (9)^2
N(9) = 540 - 81
N(9) = 459.
I believe the solution would be 459, thus 459 people will go to the concert.
N(9) = 60(9) - (9)^2
N(9) = 540 - 81
N(9) = 459.
I believe the solution would be 459, thus 459 people will go to the concert.