What is the solution of the system of equations?
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At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?
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What is the slope of the line passing through the points (3, 3) and (5, 7) ? 1. 2 2. 1/2 3. −2 4. −1/2
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What is the value of the discrimination for the quadratic equation 0=×2+2+×2
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