The simplification of 2(4²-3)-7
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Step-by-step explanation:

To simplify this we need to follow the order of operations.

We begin with:

First, we need to simplify the exponent

Next, we need to do everything within the parenthesis

Now we can multiply

And lastly, we can subtract

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°