Rick has d dollars. the formula for the number of gallons of gasoline that rick can buy with d dollars is given by g = d/3. the formula for the numbers of miles that rick can drive on g gallons of gasoline is given by m =21g. how many miles can rick drive on $8 worth of gasoline?

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?