Mom and Grandma are each baking chocolate chip cookies. Each gives you two cookies. One of Mom’s cookies has 14 chips in it and the other has 11. Grandma’s cookies have 6 and 9 chips. Estimate the mean number of chip in one of Mom's cookies.

Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?