<p>could someone please explain questions:
1. #8 on page 520
2.#13 on page 521
3.#17 on page 522
4. #8 on page 532
5. #6 on page 549
thank you!</p>
<p>could someone please explain questions:
1. #8 on page 520
2.#13 on page 521
3.#17 on page 522
4. #8 on page 532
5. #6 on page 549
thank you!</p>