Table: yankees_2008_game_2
Columns: date
opponent
score
loss
attendance
record

Question: on april 29, what was the attendance?
SQL: SELECT SUM("attendance") FROM yankees_2008_game_2 WHERE "date" = 'april 29'

Question: on april 9 what was the attendance?
SQL: SELECT AVG("attendance") FROM yankees_2008_game_2 WHERE "date" = 'april 9'