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_name_77 (pages INTEGER, isbn VARCHAR)
### Question:
I want the average pages for  ISBN of 978-0-9766580-5-4
### Answer:
SELECT AVG(pages) FROM table_name_77 WHERE isbn = "978-0-9766580-5-4"