Lines A and B are parallel
5x-80=2x+50

x = 130/3

Step-by-step explanation:

Given

5x - 80 = 2x + 50

Transpose

5x - 2x = 50 + 80

3x = 130

x = 130/3

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°