If a projectile is fired straight upward from the ground with an initial speed of 64 feet per h(t) = - 16t? + 64t. Find the maximum height of the projectile.
The maximum height of the projectile is
(Simplify your answer.)

In 2000 the average price of a football ticket was $48.28. during the next 4 years, the proce increased an average of 6% each year.a) write a model giving the average price (p), in dollars, of a ticket (t) in years after 2000.b) graph the model. estimate the year when the average ticket price was about $60