Write SQL query to solve given problem: How many businesses in Glendale are reviewed by user with the ID of 20241?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT COUNT(T1.business_id) FROM Business AS T1 INNER JOIN Reviews AS T2 ON T1.business_id = T2.business_id WHERE T1.city = 'Glendale' AND T2.user_id = 20241