The demand for tickets to the Katy Perry concert​ (Q) is given as​ follows: Q​ = ​120,000minus−​2,000P The marginal revenue is given​ as: MR​ = 60minus−.001Q The stadium at which the concert is planned holds​ 60,000 people. The marginal cost of each additional concert goer is essentially zero up to​ 60,000 fans, but becomes infinite beyond that point. Refer to Scenario 4. Given the information​ above, what are the​ profit-maximizing number of tickets sold and the price of​ tickets?