Respuesta :

0.0006 kilograms is the smallest figure

Answer:

The answer is D. 0.42 decigrams is smaller.

Explanation:

I converted everything to grams, 0.006 kilograms = 6 grams, 500 milligrams = 0.50 grams, 40 grams is 40 grams, and 4.2 decigrams = 0.42 grams.

Hope this helps! :)