CREATE TABLE table_37785 ("Date" CLOB, "Opponent" CLOB, "Score" CLOB, "Loss" CLOB, "Attendance" FLOAT, "Record" CLOB)

What attendance has astros as the opponent, and april 29 as the date?
SELECT SUM("Attendance") FROM table_37785 WHERE "Opponent" = 'astros' AND "Date" = 'april 29'
SELECT SUM("Attendance") FROM "table_37785" WHERE "Date" = 'april 29' AND "Opponent" = 'astros'