In healthy adults, caffeine has an average half-life of about 6 hours. Let's suppose a healthy man consumes a cup of coffee that contains 100 mg of caffeine at noon. Each of the following expressions describes the amount of caffeine in the man's body some number of hours after consumption. How many hours after consumption does each expression represent?

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Q: Use log diff.

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Q: 5. Evaluate 1 b. log2 64 = %3D a. log3 3= 1 d. log7 49 %3D C. logs 64 =

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Q: Simplify: log, 16. log, 25. log 5 1 49 -16 -12 8 14 -18

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