Problem 11. Certain radioactive material decays in such a way that the mass rem years is given by the function: m(t) = 320e-0.025t, where m(t) is measured in your answers to one decimal place, if needed.) a) Find the mass of the material at time t = 0. b) How much of the mass remains after 50 years? c) How long will it take for the sample to lose half of its mass?

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