Which of the following is a random sample? A. Carlos uses an e-mail survey to find out how many students have computers at home.

B. Members of a polling organization survey city voters about who they expect to be elected mayor.

C. 50 customers at a pizza shop are surveyed about their favorite food.

D. A survey company asks 100 members at a concert who their favorite singer is.​

If gravity is one third on mars then weight also one third on mars

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