I also need help with 9.67nm=???km
2.3X10 to the -4g=????ng

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  1. Let see: nano is 10^-9

    9.67*10^-9 m

    2.3*10^-4g * 10^9ng/g=....

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  2. so if I did this right the answer would be -2.3x10^13 correct?

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  3. No. Two errors. Where did the minus sign come from? It shouldn't be there.

    To multiply exponents we add them. -4 + 9 is not 13.

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