A box contains 100 balls, of which r are red, with r < 100. Suppose that the balls are drawn from the box one at a time, at random, without replacement. Determine the probability that the first ball is drawn will be red.

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