A store is having a sale on chocolate chips and Walnuts. For 3 pounds of chocolate chips and 5 of walnuts, The total cost is $19. For 9 pounds of chocolate chips and 7 pounds of walnuts, the total cost is $35. Find the cost for each pound of chocolate chips and each pound of walnuts.

Which expression is equivalent to? assume x > 0 and y > 0.

What rule describes a dilation with a scale factor of 4 and the center of dilation at the origin?

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?