exam Maths Puzzle Numerical Ability

Can you help me with these log problems? solve with calculator to the fourth place
Thanks
14.)log 0.0332
15.)ln 40,257
16.) log x-2.0832
17.) ln x = -1.1577

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exam Other Question

i get the Pythagorean theorem, but the variables
confuse me. I tried a guess and check, but that confused me even more.

sincerely, Forrest Balman
Simplify

3^2n-1x3^5n

not in book