www.

FLEX

Literacy.com

reproduced or distributed in any form or by any means,

or stored in a database or retrieval system, without the

prior written consent of McGraw-Hill Education,

including, but not limited to, network storage or

transmission, or broadcast for distance learning.

Send all inquiries to:

McGraw-Hill Education

8787 Orion Place

Columbus, OH 43240

ISBN: 978-0-02-140095-9

MHID: 0-02-140095-4

Printed in the United States of America.

1 2 3 4 5 6 7 8 9 SCI 20 19 18 17 16 15

Cover

(t to b)Pixtal/AGE Fotostock, Design Pics/Carson Ganci, Deb Perry/

Getty Images, Lissa Harrison, RobertCrum/Getty Images.