CREATE TABLE table_78109 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Where did the away team score 8.7 (55)?
SELECT "Venue" FROM table_78109 WHERE "Away team score" = '8.7 (55)'
SELECT "Venue" FROM "table_78109" WHERE "Away team score" = '8.7 (55)'