5. Tickets to a movie cost $7.25 for adults and $5.50 for students. A group of friends purchas
8 tickets for $52.75. How many adult tickets and student tickets were purchased?

An arrow is shot vertically upward at a rate of 180ft/s. use the projectile formula h=−16t2+v0t to determine at what time(s), in seconds, the arrow is at a height of 420ft. round your answer(s) to the nearest tenth of a second.

Let f (x) = x e8x. find a formula for the nth derivative of f, where n is any positive integer. use x and n in your answer if needed. f (n)(x) =

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r