write XPath expressions in an R Notebook that evaluate the following queries; display the results in your R Notebook. What are the titles of all books written by "Galos, Mike"? List the titles and the...

write XPath expressions in an R Notebook that evaluate the following queries; display the results in your R Notebook.

1. What are the titles of all books written by "Galos, Mike"? List the titles and the prices.


2. In what genre is the book with id "bk109".


3. What are the titles of the books that sell for the lowest price? (Use the min aggregation function)


4. List the title and prices of all books in the "Computer" genre.


5. What is the number of all books that cost less than $5? (Use the count aggregation function)

Gambardella, Matthew XML Developer's Guide Computer 44.95 2000–10–01 An in-depth look at creating applications with XML. Rals, Kim Midnight Rain Fantasy 5.95 2000–12–16 A_former architect battles corporate zombies, an evil sorceress, and her own childhood to become queen of the world. Corets, Eva Maeve Ascendant Fantasy 5.95 2000–11–17 After the collapse of a nanotechnology society in England, the young survivors lay the foundation for a new society. Corets, Eva 0beron's Legacy Fantasy 5.95 2001–03–10 In post-apocalypse England, the mysterious agent known only as Oberon helps to create a new life for the inhabitants of London. Sequel to Maeve Accondant "/>
Extracted text: Вooks-v3.xml Gambardella, Matthew XML Developer's Guide Computer 44.95 2000–10–01 An in-depth look at creating applications with XML. Rals, Kim Midnight Rain Fantasy 5.95 2000–12–16 A_former architect battles corporate zombies, an evil sorceress, and her own childhood to become queen of the world. Corets, Eva Maeve Ascendant Fantasy 5.95 2000–11–17 After the collapse of a nanotechnology society in England, the young survivors lay the foundation for a new society. Corets, Eva 0beron's Legacy Fantasy 5.95 2001–03–10 In post-apocalypse England, the mysterious agent known only as Oberon helps to create a new life for the inhabitants of London. Sequel to Maeve Accondant