The radioactive substance uranium-240 has a half-life of 14 hours. The amount 4 (t) of a sample of uranium-240 remaining (in grams) after hours is given by the following exponential function. t A(t)=4700(%) 1 Find the initial amount in the sample and the amount remaining after 50 hours. Round your answers to the nearest gram as necessary. Initial amount: Amount after 50 hours