Answer:
d. 3524.4 g
Step-by-step explanation:
To determine the mass of the copper necklace, we use the formula
, where d = density, m = mass, and v = volume. In this case, d = 8.9 g/cm³ and v = 396 cm³.
We can rearrange the formula to solve for the mass and then plug in the values:
m = d × v
m = (8.9 g/cm³) × (396 cm³)
m = 3524.4 g
So the answer is d. 3524.4 g