Sam deposited $80 in a new savings account with 1.5% interest rate. At the end of 9 months, how much interest is in his account? * I = Prt make sure to change months to year and % to decimal

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.