Answer:
x = 3
Step-by-step explanation:
2x + 12 = 18
2x = 18-12
2x = 6
x = 3
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hope htis helps :)
If the elevator stopped at the 18th floor and she got in and went 14 floors down and got off, she got off on the 4th floor
Whenever you reflect a point over the x axis, the x coordinate stays the same and the y coordinate is negated. In this case, the y coordinate which is 3 will be negated to become -3, and the x coordinate which is -5 will remain the same. Therefore, the new point is (-5,-3).
I hope this helps.
680.6/820 = 0.83
0.83 = 83%