Question

The Grand Canyon is approximately 2^9 kilometers long. Mariner Valley is a canyon on Mars that is approximately 2^12 kilometers long. About how many times longer is Mariner Valley than the Grand Canyon?

2

2^3

2^21

2^108

Answer 1

2^12 / 2^9

= 2^12-9

= 2^3

= 8

Explanation:

I'm not sure, apologies if this isn't the right answer.. have a good day/night!