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_2668336_24 (incumbent VARCHAR, candidates VARCHAR)
  ### Question:
  How many times is the candidates charles f. mercer (f) 100%?
  ### Answer:
  SELECT COUNT(incumbent) FROM table_2668336_24 WHERE candidates = "Charles F. Mercer (F) 100%"