Answer:
Necklace volume = 0.58 mL
Explanation:
We can find the volume of the necklace by subtracting the initial (starting) water level from the final (ending) water level:
Necklace volume = 2.98 mL - 2.4 mL
Necklace volume = 0.58 mL
Therefore, the volume of the necklace is 0.58 mL.