Mr. Same took 1h 15 min drive from hid home to his office. if the distance between his home and office was 50 miles, at what average speed did Mr. Sam drive?

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.