400
Make corrections to the sentence (if needed) to avoid ambiguous pronouns:
Eduardo knows that he has to pick up his papers and his binder in English III. He needs it by the time the bell rings.
Eduardo knows that he has to pick up his papers and his binder in English III. He needs both his papers and binders by the time the bell rings.
OR
Eduardo knows that he has to pick up his papers and his binder in English III. He needs his binder by the time the bell rings.
OR
Eduardo knows that he has to pick up his papers and his binder in English III. He needs his papers and his binders by the time the bell rings.