PLZ HELP SHOW YOUR WORK I DO ANYTHING JUST HELP Find the perimeter of the following shape

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 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

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