Select all that are correct. 16n - 2 + 9n = 2(8n - 2) + 9n
5 ( 3 - 2y) = 15 - 2y
4m + 11 - 7m + 3m + 3 = 14m + 14
b + 2b + b² + 2b² = 3b² + 3b
6x (2x - 5) = 12x² - 30x

Rectangle pqrs has length a and width 4b. the x-axis bisects ps and qr what are the coordinates of the vertices

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)

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