C.) of a total of $10,000, part was invested at 10% simple interest and the remainder at 7%. If the total income for the year was $80s, how much was invested at each rate?

Um what? rephrase that ?

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