The answer is 4.88, measured as units of grams/cm³. We calculate the density as the measurement of the amount of mass per unit of volume, by dividing the mass by its volume: density = mass/volume = 122 grams / 25 cm³ = 4.88 grams/cm³ This material with a density that is greater than 1 gram/cm³ will sink in water (whose density is approximately 1 gram/cm³) because it is denser.