please give a brief explanation notes to this economics questions

15. Will AutoCAD Revit Suites Subscription customers be required to install Building Design Suite Premium? 17. How does the Subscription Previous Version Policy work for AutoCAD Revit Suites customers who are migrated to Building Design Suites 2013 Premium Edition? 18. Is the AutoCAD Revit LT Suite affected by this change? 19. What should resellers do now to prepare their customers for this change .7. What benefits does Building Design Suite 2013 provide over AutoCAD Revit Suites? 8. What is the Subscription price of Building Design Suite Premium? 9. Will Autodesk continue to offer individual Revit-based products? 10. What is the communication plan for AutoCAD Revit Suites Subscription customers? 11. Is this program for AutoCAD Revit Suite Subscription customers globally? 12. Will AutoCAD Revit Suites customers have the ability to upgrade their Building Design Suite Premium to Ultimate? 13. Will AutoCAD Revit Suites customers have the ability to downgrade to standalone Revit products?1. What changes are being made to the availability of Autodesk Subscription for the AutoCAD Revit Suites? 2. Why is Autodesk discontinuing Subscription for the AutoCAD Revit Suites? 3. What will happen to existing Subscriptions to AutoCAD Revit Suites? 4. How will AutoCAD Revit Suites Subscription customers access Autodesk 5. What is Autodesk Building Design Suite Premium? v. what does Autodesk Building Design Suite Premium 2013 include