Final answer:
Frank's eraser has a density of 3 grams per cubic centimeter, calculated using the formula D = m/V, where D is density, m is mass, and V is volume.
Step-by-step explanation:
To find the density of Frank's eraser, we use the formula for density: D = m/V, where D is density, m is mass, and V is volume. Given that the mass of the eraser is 3 grams and the volume is 1 cubic centimeter, we can simply divide the mass by the volume.
So the calculation for the density of the eraser would be:
D = m/V = 3 g / 1 cm³ = 3 g/cm³.
Hence, the density of Frank's eraser is 3 grams per cubic centimeter.