Question

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Answer 1

Answer:

I think (a) option is write answer, 4.3 years

Answer 2

Answer:

4.3

Explanation:

By the way, light travels at 186,000 miles per SECOND, not per hour. First of all, a light-year is the distance light travels in one year. The star Alpha Centauri is about 4 light-years away, so light from Alpha Centauri takes 4 years to get to the Earth.