I belive it could be 6.5 but I could be wrong



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If west means the west of the axis x the velocity equal :

1,000 W = 1 kW
100 W = 0.1 kW
(0.1 kW) x (6 h) = 0.6 kWh <=== energy
(0.6 kWh) x (£0.1359/kWh) = £0.0815 <=== cost of it
It’s called mirror universe