science, 7th,6th,8th,9th grade

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In what three ways can machines make work easier?

  • science, 7th,6th,8th,9th grade -

    Less time, less people to operate machines, and less cost to company due to training the different people to manage the job.

  • science, 7th,6th,8th,9th grade -

    pullie, ramp,&& wedge:)

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