1. Use Exists to find reservation ID, trip ID, and trip date for reservations for a trip in New Hampshire (NH). 2. Find the guide last name and guide first name of all guides who can lead a paddling trip. 3. Find the trip ID and trip name for each trip whose maximum group size is greater than the maximum group size of every trip that has the type Hiking. 4. Find the trip ID and trip name for each trip whose maximum group size is greater than the maximum group size of at least one trip that has the type Biking. 5. Calculate the total revenue for each trip. Total revenue is calculated as number of persons times trip prices plus other fees. 6. Use the formula in question 5 to find total revenue and average revenue for each guide. 7. Who are the customers participated in a summer trip with a guide Called Zach Gregory