Jennifer serves the volleyball to Deb with an upward velocity of 10.5ft/s. the ball is 5 feet above the ground when she strikes it. how long does debra have to react before the volleyball hits the ground

The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?