Astore owner uses the expression, r - 0.2r, to calculate the sale price of each cd player he is discounting. which of the following is an equivalent expression?  

The equivalent expression is 0.8r

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c