1) All the following were Native American tribes fighting during the Battle of Little Bighorn Ex
A: Choctaw
B: Cheyenne
O Sioux
D: Arapaho

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:

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32.5 is the answer i got thats the answer