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_11318462_29 (founded VARCHAR, enrolment VARCHAR)
### Question:
How many schools have an enrollment of 850?
### Answer:
SELECT COUNT(founded) FROM table_11318462_29 WHERE enrolment = 850