Question

Please help

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

2
2 to the 3rd power
2 to the 21st power
2 to the 108th power

Answer 1

\[divide ~2^{12}~by~2^9\]
\[\frac{ 2^{12} }{ 2^9 }=?\]
\[\frac{ x^a }{ x^b }=x^{a-b}\]

Answer 2

2 to the 9th is 512 and 2 to the 12th is 4096 subtract those numbers and you would get 3584 hope this helps 😵