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Mathematics 11 Online
OpenStudy (anonymous):

An astronaut weighs 170 pounds on Earth but only 68 pounds on Mars. While visiting the planet, the astronaut removes a rock sample that weighs 25 pounds on Mars. What is the weight of the rock sample on Earth?

OpenStudy (alphadxg):

Well, it's simple math, we can do it.

OpenStudy (alphadxg):

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