Please help, I am struggling to understand the counting of atoms

Check Box 1 and Box 3

Explanation: Formula 1 has (NO3)2 meaning it has 6 oxygen atoms (2x6) while formula 2 has CO3 with only 3 oxygen atoms.

Its essentially the same thing with box 3 with there being 8 hydrogen in formula 2 (NH4)2 and only 4 in formula 5 NH4 by itself

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