Eddie will enter high school next year. His older brother tells him that everybody in
high school plays a musical instrument.
Skeptical, Eddie decides to investigate.
Throughout the next month, he asks a
randomly selected sample of high-school
students whether they play an instrument.
The table at left shows what Eddie finds.
Rounded to the nearest percent, what
percentage of all 10th graders do not play
an instrument?

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

31/6= 19/6 19/6 *1/7=19/42