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_2182562_2 (team_s_ VARCHAR, avg_start VARCHAR)
### Question:
How many different teams had an average start of 12.9?
### Answer:
SELECT COUNT(team_s_) FROM table_2182562_2 WHERE avg_start = "12.9"