A movie theatre requires an application to sell tickets in Internet The school needs an app lo enroll students in this classroom A new social network where you can upload music. **** Represent at least 5 entity types and their attributes in an ER diagram, 1 derived attribute, the key attribute A movie theatre requires an application to sell tickets in Internet The school needs an app lo enroll students in this classroom A new social network where you can upload music. **** Represent at least 5 entity types and their attributes in an ER diagram, 1 derived attribute, the key attribute