Answer:
A
Step-by-step explanation:
1.9 about 2, and 4.4 is about 4.
2x4=8
So it is safe to say between 4 and 10.
5.104+4.103+7.10+1=
9.207+7.10+1=
16.307+1=
17.307
It would be called an ecological model.
Answer:
-12
Step-by-step explanation:
(2.0×10^-4)×(3.1×10^-20)
=(2.0×3.1)×(10^4×10^-20)
=6.2×10^(-4+(-20))
=6.2×10^-24. Hope it help!
