30. In modeling the reaction of a drug in the patient's body, the daily dose of the drug in the patient's body is investigated. Apparently there was a relationship between the dose of medicine in his body one day with the dose of medicine the next day. If there are x gram of drug substance in one day, the next day the dose of drug in the patient's body is 0.2x + 0.1 gram. Based on these observations, over time the dose of the drug in the patient's body is ... grams. 1 A. 10 В. C. 1 8 D. Е.

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