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QUESTION
Gabriel determined that his total cost would be represented by 2.5x + 2y - 2. His sister states that the expression should be x + x + 0.5x + y + y - 2. Who is correct? Explain.
Gabriel determined that his total cost would be represented by 2.5x + 2y - 2. His sister states that the expression should be x + x + 0.5x + y + y - 2. Who is correct? Explain.
