I am having trouble on these two problems:

If a=2, b=3 , and c=5, evaluate the following:

1. ln(((a^-3)(b^1))/(bc)^-2

2. (ln(c^1))(ln(a)/(b^4))^-1

For #1, I keep getting 15.

So I have not been able to go on to #2 because I do not understand #1.

Please Help!

Thanks, lsnyder