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BCPS Links POSSIBLE POINTS: 0.91 A radio-active substance has a half-life of one week. In other words, at the end of every week, the level

BCPS Links POSSIBLE POINTS: 0.91 A radio-active substance has a half-life of one week. In other words, at the end of every week, the level of radioactivity is half of its value at the beginning of the week. The graph shows the relationship of the amount of radioactivity against time in weeks. Based on the graph, what is the initial amount, in grams of radioactivity. 40 radioactivity (grams) 30 -20 10 time in weeks

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