Respuesta :
So if she had 23 now I would say she started with 24:
So 23-11=12 so this was half of the stamps before buying the 11 extra
but 12x2=24 which would have been to total sum of stamps she started with.
So 23-11=12 so this was half of the stamps before buying the 11 extra
but 12x2=24 which would have been to total sum of stamps she started with.