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Can you recommend an excellent logarithm tutorial, maybe a place to find some exercises with worked answers?
try purple math: http://www.purplemath.com/modules/solvelog.htm there's also this page: http://www.maths.mq.edu.au/numeracy/web_mums/module2/Worksheet27/module2.pdf and this page has some worked log problems: http://pages.uoregon.edu/lwang3/M111-Year1/Handouts/111-worksheet-log-solution.pdf
Thanks, Jim. That should help me build some strength in logarithms.