If the mass of a material is 96 grams and the volume of the material is 25 cm3, what would the density of the material be?

The density here is the number of grams present in 1 cm^3 (1 cubic centimeter). So, divide 96 by 25 to get the 3.84 g/cm^3 (3.84 grams per cubic centimeter).

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).