text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_23499946_1 (directed_by VARCHAR, us_viewers__in_millions_ VARCHAR)
  ### Question:
  How many directed by have 2.80 as u.s. viewers  (in millions)?
  ### Answer:
  SELECT COUNT(directed_by) FROM table_23499946_1 WHERE us_viewers__in_millions_ = "2.80"