Express the answers to these problems in the correct number of significant figures.
6. 0.042 m. + 1.33 m =
7. 8.90 g - 4.555 g =
8. 60.0 L/5 L =
9.
7.8 cm x 3.5 cm =
10.
5.63 +4.245 - 8.9 =

I solved the questions then counted how many significant figures in each answer

eg,

0.042m+1.33m =1.372m

1.372 has 4 significant figures

that's how you do others

Explanation:

6. 1.372m = 4 significant figures

7. 4.345g = 4 significant figures

8. 12L = 2 significant figures

9. 27.3cm = 3 significant figures

10. 0.975 = 3 significant figures

i would say b

explanation:

but i think i would need more information than that

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.