Question

100 ml graduated cylinder containing 50 ml of water, drop 100g piece of brass into the water what height does the water rise in the graduated cylinder?

Answer 1

volume = mass/density
Look up the density of brass, substitute and solve for volume. mass is 100 g.
The add the volume of the brass to the volume of the water (50 mL) and that will be the new reading of the water level. I don't know what height that is; I'm assuming that means what volume reading that will be on the graduated cylinder.