When would you use a checking account as opposed to a savings account?

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Explanation:

You would use a checking account when you just need quick money from when you are getting paid. You would use a savings account when you have little to no money and you absolutely can't think of another way to get money. Like if you have your own business and your parents are immigrants, and you need to save up money to get them to America. You can open up a savings account so every time you get paid you put a little bit into it.

there's 11 people for the 1st position. then, no matter who gets it, there's only 10 left for the second, and then 9 left for the third. 11 x 10 x 9 = 990.   the answer is there are 990 different ways the positions can be filled by these applicants

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