Answer:
0.779 cube centimetres
Step-by-step explanation:
density = mass divided by volume
rearrange the equation to solve for volume:

plug in the corresponding values:
volume = 6.130 g / 7.87 (gcm^3)
the gs cancel, the answer will be 0.7789
we will round to three sig figs, since that's the lowest amount of figures in the given values: ~0.779 cm^3