For answers to Practice problem 2.8 in Page 19, click Practice Problem 2.8.
For answers to Exercise 2.6 on Page 25 see Exercise 2.6.
For Exercise 2.8 on the same page, see Exercise 2.8.
For Exercise 3.3 on Page 57 see Exercise 3.3.

The following refer to Handout #2.

Exercise 2.4 in Page 41 is answered in the page after Page 44 and also in Exercise 2.4.
For Exercise 2.7 see Exercise 2.7. The same page has answers to Exercise 2.18.
For Exercise 2.19 see Exercise 2.19.