In what situation would you most likely factor out -1? a) when the coefficient of x is negative. b) when the constant term is negative. c) when the coefficient of x^2 is negative.

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

With number 11 ( show how you got the answer)

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.