Which best represents the expression 9
n
−
7
?

nine less than seven times a number

nine times the difference of a number and seven

seven less than nine times a number

seven times nine subtracted from a number

b.-4 units

all you   do is count how many times you move

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°

true

step-by-step explanation:

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