The kametz under the tzade. The form is typically qotel. I figured out it is qotal because of the he at the end.
Yes, we don't say 'a bread'. We say 'some bread', or simply ' bread', as well as the alternatives offered by NaftaliFri1.
Not the same, you would need to specify, in the Hebrew, that she wants a piece, or a loaf of bread, to translate to " a bread "