(PLEASE HELP) Which of the following does not represent the lengths of the side of a triangle

A. 2 cm,6 cm,7 cm
B.5 cm,5 cm,8 cm
C.5 cm,2 cm,5 cm
D.3 cm,10 cm,15 cm

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.

What is the t intercept of the line given by the equation below y= -10x + 14

What is the measure of minor arc dm?