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Loyalty discount! If the total amount of your purchases from the seller more than:

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$20 the discount is 5%
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$0.57
9.6.7
The speed of the load is 1 v1 = 0.5 m / s. Determine the speed of the load 2.
(Answer 0.25)
31.05.2022 10:18:43
Очень плохое качество, не все видно на рисунке