A bag is 'un sac' or 'un sachet' (for the smaller ones) in French.
Sacs
[sak]
"Des sacs de haute couture."
des sacs élégants
de beaux sacs et des parfums
Poufs
des sacs élégants et des parfums
No, "bangs" and "bags" are not the same thing in French adjectives. "Bangs" is translated as "frange" and refers to a type of hairstyle where the hair is cut across the forehead. "Bags" could refer to "sacs" or "poches" which means bags or pockets.
Plastic bags are not biodegradable.
'trois sacs' means 'three bags' in French.
les sacs à main
no there fake
You would say empacote as suas bolsas.
to say is the verb 'dire' in French.