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Mathematics, 26.09.2019 02:30 hargurgill20

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

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