Four children have small toys. the first child has 1/10 of the toys, the second child has
12 more toys than the first, the third child has one more toy of what the first child has
and the fourth child has double the third child. how many toys are there?

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?