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VenusRetrograde
18000cm³

So we start off with 18000cm³, and we need to convert it to kg. Since we don't have a direct conversion for cm³ to kg, we have to use two conversions to solve the problem.

1cm³=1g

1000g=1kg

So we take 18000cm³ and convert it to grams and then convert it to kilograms.

[tex]18000cm^{3}* \frac{1g}{1cm^3}* \frac{1kg}{1000g} [/tex]

Now we just multiply the top and the bottom values by each other...

[tex]18000cm^{3}* \frac{1g}{1cm^3}* \frac{1kg}{1000g}= \frac{18000kg}{1000}=18kg [/tex]

The cm³ and g cancel out, so we're left with 18kg

Answer=18kg

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