So I've already got some help on this one, now I have a different question pertaining to this equation.
I know
N=q/e
e=-1.6x10^-19
q=-15x10-6
so I tried:
N=(-15x10-6)/-1.6x10^-19
N=-156/-1.6x10^-19
N=9.74
~that was wrong
So I thought maybe this:
N=(-15x10-6)/-1.6x10^-19
N=--60/-1.6x10^-19...