Use the image to determine the volume of the rock.
Initial volume: mL
Final volume: mL
Volume of rock: cm3

Explanation:

The volume of an object with irregular shape can be measured by placing the object into a graduated cylinder filled with water, and by measuring the change in volume of the water: the change in volume of the water is equal to the volume of the rock.

In this case, we have:

Initial volume of water, before the rock is placed inside the water: 13.7 mL

Final volume of water, after the rock is placed inside the water: 28.9 mL

Therefore, the change in volume of the water is:

And since we have the following equivalence:

Then it means that the volume of the rock is:

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