m angle 7 is 134 degrees
Since 3x+80+9x-116=180 since 7 and 8 are supplementary. This helps you find x which equals 18. After plug in x=18 into 3x+80 and you will get angle 7 is 134.
Answer:
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Answer:
C = (4,4)
It is (4,4) because it means that it is twice as large as the original coordinates.