If the inverse demand curve for rides at the Yamit Water Park located in the city of Holon, near Tel Aviv, Israel, is \(p=200-Q / 50\), where \(p\) is the price of admission in shekels and \(Q\) is the number of visitors per day, what is the revenue-maximizing price? If Holon estimates that local businesses benefit by IS50 per day for each tourist that visits the water park, what price should it charge for admission to maximize both water park revenues and spin-off benefits for local businesses? \(\mathbf{C}\)