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A coin is flipped twice. If heads comes up either time, add 2 points. If tails comes up twice, subtract 3 points. What is the expected value of this game? (list the 4 outcomes)
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Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?
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Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.
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Hurry if the population of of an ant hill doubles every 10 days and there are currently 100 ants living in the ant hill what will the ant population be in 20 days
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You went to a restaurant and spent $53.25 on the meal. there was a 6% sales tax. what was the amount of money, not including a tip, you spent at the restaurant?
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A coin is flipped twice. If heads comes up either time, add 2 points. If tails comes up
twice, subt...
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