Question

Which is the appropriate indefinite article for the word libretas?

Answer 1

options?

Answer 2

unas

Answer 3

It is unas libretas. Unas is femenine and plural indefinite article, and it match with libretas. You do not have more options @Crissy15 in this case.
Well done @genny7

Answer 4

oh ok

Answer 5

@Crissy15
if you say las libretas you are using the femenine and plural definite article las.
if you say unas libretas you are using the femenine and plural indefinite article unas.

Answer 6

ok