user: ### NOW ANSWER:
Question: How many minutes were played when there were 18 points and the opponent was chicago bulls?
Columns: ['Blocks', 'Opponent', 'Home/Away', 'Minutes played', 'Points', 'Rebounds', 'Assists']
Types: ['text', 'text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['11', 'Detroit Pistons', 'Away', 46.0, 29.0, 21.0, 2.0]
SQL:

assistant: SELECT COUNT("Minutes played") FROM "Table" WHERE "Points" = 18.0 AND "Opponent" = 'chicago bulls';