Hi I need help, Ted says that the triangle below can not be classified because all the sides are different lengths the left side is 12.42ft the right is 9.5ft and the bottom is 8ft

Solve the system of equations y= 3/2 - 1, -x+ y =-3

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.

Use this graph to find the cost of 6 show tickets