HELP

Melody, is there a reason you used natural log?  I used log₁₀ and got the same answer. 

_.

Hi Guest,

No there is no reason, you can use any log you want. 

Log 10 is an equally good alternative.  

Thank you, Melody.  I love the new avatar.    I looked it up; it's an actual road sign in Australia.

_.

Thanks guest,

Yes it is a relatively common roadside, in the country anyway. :)

I actually took a photo to use here but I cannot remember if this is my photo or a different one from the internet.