Find the common difference -7x,-4x,-x,2x
2 answers:
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Top is the passenger train
bottom is the freight
make sure you add 48+8=56
there are 56 trains that went to the station in a 12 hour period.
bottom is the freight
make sure you add 48+8=56
there are 56 trains that went to the station in a 12 hour period.