The answer: "1800" .
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The volume is: " 1800 mm³ " .
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Explanation: Volume = L * w * h = length * width* height ;
We plug in the given values; all of which are in units of "m" (meters);
Volume = (3 m) (1.5 m) (0.4 m) = 1.8 m³ .
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The question asks for the value, "the volume", in units of: " mm³ " ;
that is, units of: "cubic millimeters" ;
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So; we convert our obtained volume; "1.8 m³ " ; to units of "mm³ ".
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Note the exact conversion: 1000 mm³ = 1 m³ ;
So; V = "1.8 m³ = {1.8 m³ * (1000 mm³/1 m³) } = (1.8 m³ * 1000) mm³ ;
V = 1800 mm³ .
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