Acompany encourages its 1 employees to car-pool. about 1690 have arranged for car pooling. what percent of the companys employees are involved in a car pooling?

M∠abc=138° and m∠def=31° . which statement is true about ∠abc and ∠def ? a: the angles are neither complementary nor supplementary. b: the angles are complementary. c: the angles are supplementary.