Answer it plz the answer is easy but cant undersatand

Answer:
2.
a. 3 meters^3 is the volume.
Explanation: This is when we find the volume of a rectangular prism which is whl so, 2*1.5*1=3^3.
b. 3000 is the mass.
Explanation: Density is calculated by mass/volume so, 1000=m/3. When we multiply 3 to both sides, we get 1000*3 which is 3000. So, 1000=3000/3.
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