Marking brainliest What does this quote mean? “The time is always right to do what is right”- MLK. don’t use the internet pls !!

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

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?