Make the following conversion.

420 hg = cg

42
42
0.0420
0.00420

1 hectogram = 10,000 centigrams

So just take 420 and times it by 10,000 this should give you 4,200,000 the first answer.

Hope this helps :)

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be