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Mathematics, 25.08.2019 10:20 himatasy
Every 2 days a scientist spends 1.25 hours observing dolphins and 3.5 hours observing sea lions. at this rate, how many total hours will the scientist spend observing dolphins and sea lions in 6 days?
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Every 2 days a scientist spends 1.25 hours observing dolphins and 3.5 hours observing sea lions. at...
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