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Algebra II Distance/Rate/Time Problem= Please Help!!?

A freight train takes 4.5 hours longer to make a 420-mile journey than a passenger train. If the passenger train averages 30 mph faster than the ...

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How many square feet will 42K BTU heat?

I installed a new gas insert for my fireplace. My room is only 420 square feet and I am cold most of the time. The insert is supposed to put out ...

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930,812,650,420,182,so next?

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