Physics(Please check)

What is the difference between the measured values of 1.05m and 1.050m? What factor of a measurement tool determines the sig figs of a measured value?

The two values are different because of their sig figs, the first has 3 and the other has 4. I think that the factor of a measurement tool that determines the sig figs is the least count.

Are my answers correct? Thank you!

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