In Chapter 2 (Page 50), the answer to Question 1 should be C and not B.
In Chapter 2 (Page 53), the answer to Question 7 should be B and not A.
In Chapter 9 (Question 6), the third answer should be "C. It prints tomorrow's date 30 times"

Thank you to Dwight Webber for his careful reading of the book and finding the errors.