Answer:
39 maybe i don't know
Step-by-step explanation:
6cm^3 =
6* 0.001dm^3=
6*10^(-3)dm^3=
6*10^(-3)*10^(-3)m^3=
6*10^(-6)m^3
or 0.000006 meters cubed
4 is correct. Set up a ratio relationship between similar triangles. 
I think it’s D. Hope this helps