The figure shows a cylindrical if base radium 7.5 cm with some water inside. Three metal cylinders of base 3 cm and height 2 cm each are put inot the container. It is given that the cylinders are totally immerssed in the water and no water overflows. Find the rise in water level

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z