The Grand Canyon is approximately 29 kilometers long. Mariner Valley is a canyon on Mars that is approximately 212 kilometers long. About how many times longer is Mariner Valley than the Grand Canyon?
a. 2
b. 2 to the 3rd poer
c. 2 to the 21st power
d. 2 to the 108 power

Question

The Grand Canyon is approximately 29 kilometers long. Mariner Valley is a canyon on Mars that is approximately 212 kilometers long. About how many times longer is Mariner Valley than the Grand Canyon?
a. 2
b. 2 to the 3rd poer
c. 2 to the 21st power
d. 2 to the 108 power

anonymous · Answer

I'll help, but you have to do a part of it first
2^3=what?

anonymous · Answer

It's just 2*2*2

anonymous · Answer

2*2*2=8
8*29=232
232 is pretty close to 212 compared to the other answers, so that answer is 2^3

anonymous · Answer

thanks so much, sorry I didn't reply my computer froze but thank you