The amount of plutonium remaining from 1 kilogram after x years is given by the function w(x)- 2 24,360 (a) how much will be left after 3000 years? (b) how much will be left after 7000 years? (c) how much will be left after 14,000 years? (d) estimate how long it will take for the 1 kilogram to decay to haif its onginal weight (a) the amount of plutonium left after 3000 years is about (round the final answer to two decimal places as needed. round all intermediate values to six decimal places as needed)y kilograms