A 15-g sample of radioactive iodine decays in such a way that the mass remaining after t days is given by m(t) = 15e^-0.055t, where m(t) is measured in grams. After how many days is there only 1 g remaining? (Round your answer to the nearest whole number.)

A 15-g sample of radioactive iodine decays in such a way that the mass remaining after t days is given by m(t) = 15e-0.055t, where m(t) is measured in grams. After how many days is there only 1 g remaining? (Round your answer to the nearest whole number.) 15 * days Need Help? Read It Watch It