Sarah has a large square piece of foam for an art project. The side lengths of a square are “ x” inches. To fit her project, Sarah cuts a section of the foam from two of the sides so she now has a rectangle. How much foam does Sarah cut from each of the two sides. Justify your answer and show all your mathematical thinking.

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.