2x + y + 2x - 5 - y combining like terms with the distributive property
(I NEED HELP PLEASE )

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

Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15