Answer:
Light can travel in a vacuum, and its speed is constant even if the light source is moving.
Explanation:
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Try creating a claim by yourself asking someone else to is a bad idea if you try it on your own First, then ask for help.
This answer is A. Reasoning
Answer:
8-9= -1 is correct.
Explanation:
8 is a smaller number than 9 so you will be left with a negitive answer.
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