I do't understand what this is. how do I solve or simplify 100^12/100^8? Am I supposed to add the exponent or multiply them?

Neither.

http://www.google.com/#q=dividing+exponents

so 100^12/100^8 is 100^4 is that right?

Yes, that's right.

thank you so much Ms Sue

You are very welcome.

To solve or simplify the expression 100^12/100^8, you need to understand the rules of exponents. When you have the same base raised to different exponents and you are dividing, you subtract the exponents. Here's the step-by-step process:

1. Start by subtracting the exponents: 12 - 8 = 4.

2. The result is the new exponent in your simplified expression. Therefore, 100^12/100^8 simplifies to 100^4.

So, to answer your question, you should subtract the exponents when dividing with the same base.