Agranite monument has a volume of 25,365.4 cm3. the density of granite is 2.7 g/cm3. use this information to calculate the mass of the monument to the nearest tenth.

V = 25,364.4 cm^3              Is volume
r = 2.7g/cm^3                      Is density

To calculate mass you use formula:
m= V*r
To avoid remembering this formula you can see the type of unit on each given variable. We can see that we have g/cm^3 and cm^3. If we multiply them, we negate cm^3 and cm^3 and we are left with g which is unit for mass.

m = 68,486,6 g   is the answer.