Okay guys one more and thank you!

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

What is the solution of the systems of equations? y=2/3x+3 x=-2

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out