Question

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Answer 1

Answer:

See the above solution.

Answer 2

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301 .020 it have 6 significant figures.

Rules of significant figures :

⚡Non-zero digits are always significant

⚡Any zeros between two significant digits are significant

⚡A final zero or trailing zeros in the decimal portion ONLY are significant

Example: 0.500 or 0.632000 the zeros are significant.