Due to employee safety negligence at a nuclear waste facility, 2000 tons of a radioactive element is spilled into the nearby pool. The half-life of the radioactive element is 36 days. In sorder to be declared safe for swimming, based on its size and the amount of water, there must be less than 100 tons of the material found in the pond. How long, to the nearest day, until it is safe to swim. Show ALL your work and multiple steps.