Blue Bra

It is a normal bra fine, it's just blue and shows so clearly through the white (which is my school colors).

Thank you =)

No arms are usually made of a material very delicate and bleach tends to break clothes. It eats through the fabric, if you leave it too long. And it would make your bra yellow, not white.

It is a stain remover laughs, but is not guaranteed.

Get a new bra.

It probably will not turn in Nice. It will not necessarily white. You'll never be the bleach smell either. And, yeah it probably damage the delicate structure.

I'm not going to help you resolve this issue, therefore, musts schoolboy trying to make his own school work.