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Becca and Kimberly are running at a constant speed in a marathon. Becca runs at 4.5 miles per hour. Who runs faster? And if Becca and Kimberly are 5 hours into a marathon, how far has each ran?
answered Jan 19, 2021
3 votes
127k views
Why do scientists use two different models of light​
answered Jan 15, 2021
4 votes
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