An astronomical unit (AU) is the distance between Earth and the Sun. It takes about 8 minutes for the energy from the Sun to reach Earth. If Mars is 1.5 AU from the Sun, how many minutes will it take the Sun's energy to reach Mars?

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1. An astronomical unit (AU) is the distance between Earth and the Sun. It takes about 8 minutes for the energy from the Sun to reach Earth. If Mars is 1.5 AU from the Sun, how many minutes will it take the Sun's energy to reach Mars?