Question 3.27 is what i need answered for homework???

3.27. Cardinality ratios often dictate the detailed design of a database. The cardi- nality ratio depends on the real-world meaning of the entity types involved and is defined by the specific application. For the following binary relation- ships, suggest cardinality ratios based on the common-sense meaning of the entity types. Clearly state any assumptions you make. Entity 1 1. STUDENT 2. STUDENT 3. CLASSROOM 4. COUNTRY 5. COURSE 6. ITEM (that can be found Cardinality Ratio Entity 2 SOCIAL SECURITY_CARD TEACHER WALL CURRENT_PRESIDENT TEXTBOOK ORDER in an order) 7. STUDENT 8. CLASS 9. INSTRUCTOR CLASS INSTRUCTOR OFFICE EBAY BID 10. EBAY _AUCTION ITEM 3.28. Consider the ER schema for the MOVIES database in Figure 3.25. Assume that MOVIES is a populated database. ACTOR is used as a generic term and includes actresses. Given the constraints shown in the ER schema, respond