Here are five log and exponent questions. I'm wasn't sure where to post them at so if this isn't the right place to make this thread, could someone please move it to where its proper place is.

Anyways, I've been able to solve some of these but I got decimals which is bad and I'm sure that I'm doing something wrong. I understand logs, these questions are just tricky because they involve more factoring and square roots.

Here's a picture:

If that doesn't work then here's a link:

http://img329.imageshack.us/img329/1750/zexp59ri8.png