∠a=10x+24 ∘ space, start color blued, angle, a, equals, 10, x, plus, 24, degree, end color blued \qquad \green{\angle b=6x + 72^\circ} ∠b=6x+72 ∘ space, start color green, angle, b, equals, 6, x, plus, 72, degree, end color green

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°

step-by-step explanation:

the true ones are a b and d

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step-by-step explanation: