A radioactive substance decays at a rate of 18% per year. If the initial amount of the
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A radioactive substance decays at a rate of 18% per year. If the initial amount of the substance is 100 grams, which of the following functions models the remaining amount of the substance, in grams, after t years?
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A) f(t)=100(0.18)* B) f(t)=100(0.82) C) f(t)=100-100(0.18)* D) f(t)=100-100(0.82)*
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