Posted by **paula jones** on Thursday, July 5, 2012 at 7:48pm.

the rim of a canyon is at an altitude of 45m. On a hike down into the canyon, a party of hikers stop for a rest 160m below the rim. They descend another 71m. What is their new altitude?

- math -
**Ms. Sue**, Thursday, July 5, 2012 at 7:50pm
45 - 231 = -186

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