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The three points (3, -5) , (-a+2,3) and (2a+3, 2) lie on the same line. what is a?
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10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.
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Erik buys 2.5 pounds of cashews. if each pound of cashews costs $7.70, how much will he pay for the cashews?
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The three points (3, -5) , (-a+2,3) and (2a+3, 2) lie on the same line. what is a?...
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