What is 5 in 8/12 + 3 in 5/12 (5 8/12 + 3 5/12)

∠cbe and ∠deb are same-side interior angles.

i took the test

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°