Question

which metric prefix represents 10^(-3)? centi- micro- kilo- milli- 12/40

Explanation:

The metric prefix "milli -" represents $10^{- 3}$. "centi -" represents $10^{-2}$, "micro -" represents $10^{-6}$, and "kilo -" represents $10^{3}$.

Answer:

milli -