How many people attended when Wake Forest played Virginia Tech?
CREATE TABLE table_name_21 (attendance INTEGER, opponent VARCHAR)
SELECT SUM(attendance) FROM table_name_21 WHERE opponent = "virginia tech"
### Context: CREATE TABLE table_name_21 (attendance INTEGER, opponent VARCHAR) ### Question: How many people attended when Wake Forest played Virginia Tech? ### Answer: SELECT SUM(attendance) FROM table_name_21 WHERE opponent = "virginia tech"