I need help with the Chapter 6 Review questions, I have access to textbook solutions but I want to make sure I understand it fully. Questions: 6.24,6.26,6.28 and 6.30. Textbook: database systems a practical approach to design implementation and management 6th

Grouping 6.22 List the number of rooms in each hotel. 6.23 List the number of rooms in each hotel in London. 6.24 What is the average number of bookings for each hotel in August? 6.25 What is the most commonly booked room type for each hotel in London? 6.26 What is the lost income from unoccupied rooms at each hotel today? Populating tables 6.27 Insert rows into each of these tables. 6.28 Update the price of all rooms by 5%