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How do I express these in scientific notation AND Log10 form?

1) ln(8.1)
2) 32.8 x 10^-2 + 3.15 x 10^-1
3) 10^-2 x 10^4.5
4) 10^-45
5) 8^2.34

I will be happy to critique your work here. Most of these require conversion. Do the math, and let your calculator do the log10 form.

If I knew how to do the math, I wouldn't have asked for help.

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