13. Linda used a number line to simplify an expression. H

-10 9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 10

Which expression did Linda simplify based on the number line?

-1-8

- 1-9

01-8

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.