Mathematics, 31.08.2021 04:00 chaofails

How many digits does the number 5^100 have if it's written in the decimal system?

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Mathematics, 21.06.2019 22:00, paco38

Identify the expression equivalent to 4(x + x + 7) − 2x + 8 − 4 by substituting x = 1 and x = 2.