Of the following set of numbers, the number 2 represents which of the following? 4, 7, 2, 5, 5, 9, 8, 1, 3, 4, 5, 5, 10, 8, 8, 3, 2, 1, 4, 2, 6, 2, 2, 2 a. mean b. average c. median d. mode

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.