How many business have been reviewed by user ID 3 and how long have this user been with Yelp?
year with yelp = Subtract ('%Y'(CURRENT TIME), user_yelping_since_year)
SELECT COUNT(T1.business_id) , strftime('%Y', 'now') - T2.user_yelping_since_year FROM Reviews AS T1 INNER JOIN Users AS T2 ON T1.user_id = T2.user_id WHERE T1.user_id = 3