Krypton-85 has a half life of 11 years. if a scientist has 500 grams of krypton-85 in her lab and she decides not to use any for her experiments how much will remain after 50 years? (round to the nearest gram)

The cone in the diagram has the same height and base area as the prism. what is the ratio of the volume of the cone to the volume of the prism? h hl base area-b base area =b volume of cone_1 volume of prism 2 volume of cone 1 volume of prism 3 volume of cone 2 volume of prism 3 oc. od. volume of cone volume of prism e. volume of cone volume of prism 3 2