Isabella's ice cream parlor uses waffle cones that are 5 inches in diameter and 6 inches tall.
what is the volume of ice cream that completely fills one cone to the top?
enter your answer as a decimal in the box. use 3.14 for pi.

Let x have probability generating function gx (s) and let un generating function u(s) of the sequence uo, u1, satisfies p(x > n). show that the (1- s)u(s) = 1 - gx(s), whenever the series defining these generating functions converge.