Write an equivalent expression by combing the like terms 5x + 9 + (-7) = ?x +9

Worth 30 points! in this diagram, both polygons are regular. what is the value, in degrees, of the sum of the measures of angles abc and abd?

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?

20 ! jason orders a data set from least to greatest. complete the sentence by selecting the correct word from each drop-down menu. the middle value of the data set is a measure and is called the part a: center b: spread part b: mean a: mean absolute deviation b: median c: range