Hi!

I would really appraciate som help with this following problem. My apologies if this is en the wrong thread but im a swede and my english terms in mathematics isn't all that great :P

Now for the task:

M is the magnitude and E the energy which is released during and earthquake.

> Solve this equation with respect to E..

> A powerful earthquake has the magnitude 8.0 on the Richterscale. How much energy i released in such an earthquake?

I've started with this one:

and now im stuck

Any help regarding these two tasks would be great

Best Regards