A tank in the shape of a rectangular prism has a base that is 20 cm wide and 30 cm long. The tank is partly filled with water. When a rock is put in the tank and sinks to the bottom. the water level in the tank goes up 2 cm. What is the volume of the rock? Explain your reasoning.

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The tank is in the shape of rectangular prism and it is partly filled therefore the v... View the full answer