I have a freaking degree

So how is it that I find the most simplest things difficult?

1) If I don't dilute things, then there is no dilution factor

2) Apparently when working with bacterial counts, you first log transform and then take the mean

3) You can't calculate recovery rates when you already did it last week

4) 10-1 in excel is apparently 9, not 10 to the power of negative 1

5) Google can't answer your questions if you don't know what you're asking