How many times larger is the mass of an average grain of rock salt than the mass of an average grain

the mass of a certain grain of rice is about 3 x 10^-2 grams. The mass of a certain grain of salt is...

If you use 10^-4 as the power of 10 , what is the mass of an average grain of rock salt?

Now that the power of 10 is the same in both figures, you can just look at the first factors of ea...

The mass of an average grain of rock salt is about 40 times the mass of an average grain of table...

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