What is the total of Frequency MHz with a Class of b1?
CREATE TABLE table_name_99 (frequency_mhz INTEGER, class VARCHAR)
SELECT SUM(frequency_mhz) FROM table_name_99 WHERE class = "b1"
### Context: CREATE TABLE table_name_99 (frequency_mhz INTEGER, class VARCHAR) ### Question: What is the total of Frequency MHz with a Class of b1? ### Answer: SELECT SUM(frequency_mhz) FROM table_name_99 WHERE class = "b1"