This question may be way too specific, but what is the word for someone who surveys land in search for Oil (for petroleum). I think it might be a scientific word, like one that ends with -ist (like biologist)


Question: Homework with logarithms
Answer: Note that we know $\log_c y$ is an integer, so $\log_c 2$ must also be an integer, hence $c^k=2$ for some $k\in\mathbb{Z}$.  If we also assume $c$ is an integer, then the problem does in fact have a unique solution.  Hope this helps.