Among the books published in 2004, list the name of the publisher of books with number of pages greater than 70% of the average number of pages of all books.
published in 2004 refers to publication_date LIKE '2004%'; books with number of pages greater than 70% of the average number of pages refers to num_pages > Multiply(Avg(num_pages), 0.7); name of publisher refers to publisher_name
SELECT T1.title, T2.publisher_name FROM book AS T1 INNER JOIN publisher AS T2 ON T1.publisher_id = T2.publisher_id WHERE STRFTIME('%Y', T1.publication_date) = '2004' AND T1.num_pages * 100 > ( SELECT AVG(num_pages) FROM book ) * 70