Apainter charges $15.61 per hour, plus an additional amount for the supplies. if he made $174.09 on a job where he worked 6 hours, how much did the supplies cost? a. $29.02 b. $80.43 c. $90.43 d. $93.66

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.