I've noticed that all of your questions are homework questions.

Please be advised that we do not do homework here. We can help, but you have to put in the effort, after all, it is your assignment, and you won't learn if you don't try.

So show us what you've come up with so far, then we can go from there. Show your work, and the experts can tell you where you went wrong, or what you're doing right, so that you can find the answer on your own. :)

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