At a price of p dollars per ticket to a rock concert that can be sold is given by a demand model, N=-25p+7800.

At a price of p dollars per ticket to a rock concert that can be sold is given by a demand model, N=-25p+7800. At a price of p dollars per ticket, the number of tickets that the concert’s promoters are willing to make available is given by the supply model, N=5p+6000.a.