How often are there ads during American Top 40?
CREATE TABLE table_name_84 (ad_freq VARCHAR, show_name VARCHAR)
SELECT ad_freq FROM table_name_84 WHERE show_name = "american top 40"
### Context: CREATE TABLE table_name_84 (ad_freq VARCHAR, show_name VARCHAR) ### Question: How often are there ads during American Top 40? ### Answer: SELECT ad_freq FROM table_name_84 WHERE show_name = "american top 40"