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Answer:
The correct answer is B. 11
Step-by-step explanation:
In order to find this we need to use the slope formula with the points (2, x) and (6, 71). Then use 15 as the slope and solve for the x.
m(slope) = (y2 - y1)/(x2 - x1)
15 = (71 - x)/(6 - 2)
15 = (71 - x)/4
4*15 = 71 - x
60 = 71 - x
-11 = -x
11 = x