The 1986 explosion at the Chernobyl nuclear power plant sent 1000 kg of radioactive cesium-137 into the atmosphere. The function describes the?(?) = 1000(0.5)^?/30 amount of cesium-137 in kilograms remaining in Chernobyl years after 1986. If 100? kilograms of cesium-137 remain in Chernobyl’s atmosphere, the area is unsafe for human habitation. A) Find f(80) and interpret this in the context of the problem? B) Determine when Chernobyl will be safe for human habitation?

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