the average distance from earth to mars is 2.25 x 10^8 km, and the distance from earth to neptune is 4.3514 x 10^9 km. How much farther is Neptune from Earth than mars? express your answer in scientific notation. do not round your answer.
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The distance from Earth to Neptune is farther than the distance from Earth to Mars by 4.3514 x 10^9 km - 2.25 x 10^8 km = 4.1264 x 10^9 km.
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