Answer:
A two story home might use translation to have both floors identical and most homes have windows of the same size and shape so they might also use translation. Sometimes buildings use reflection to make rooms opposite each other the same.
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<h2>
Answer: 8</h2>
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Therefore, Mel has to work at least 7.5 hours or 8 total hours.
Answer:
Think it is D I am not sure
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Answer:
answer is 3 and ratio of two different numbers