Answer:
c.
Step-by-step explanation:
The x-1 is there because you can see that the starting point is 1 left from the y axis, and +4 because it starts four points above the x axis.
18,14,9
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F.2:30 a.m.
8 revolutions= 8×90=720mn= 12h
So the sign starts from 2.30p.m.
Then the sign after 8 revolutions is 2.30 a.m.
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