A certain drug ingested by a patient is initially 20 mg. After 10 hours, the amount of the drug in the patient's body is 2 mg. Use hour as the unit of time. Express answers in 2 decimal places. a. What is the decay constant, k? 11 b. How much drug will be in the patient's body after 5 hours? 11 c. When will the amount of the drug in the patient's body drop to 0.08 mg? =

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