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I have a formula A8*C$2 What does that mean? What does $ mean?

Solved by T. D. in 23 mins

What does formula omits adjacent cells mean on my formula?

Solved by K. J. in 13 mins

I need help with mean time between failure formula

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=E14/((1+H15)^C14 Pls.explain the formula mean.

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What does the formula =$N$25*13 mean, please?

Solved by B. L. in 16 mins