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Lucas is carrying his rock collection into class. He carries 30 pounds of rare rocks 15 feet into Classroom 6. It takes him 3 minutes to get them into the classroom. What is Lucas's speed and how much work is done? Be sure to show your work with equations as part of your answer.
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Lucas is carrying his rock collection into class. He carries 30 pounds of rare rocks 15 feet into Cl...
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