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const2013 [10]
3 years ago
7

A student uses a lever and fulcrum to lift a rock off the ground.

Chemistry
2 answers:
chubhunter [2.5K]3 years ago
8 0
I think it’s b hope this helps
Sedaia [141]3 years ago
7 0
it has to me b because it shows what they did in this part
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