exam Maths Puzzle Numerical Ability

identify the vertex of the parabola
y = x squared + 3
also
y = 3x squared + 30x + 77

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exam Other Question

How much is 1.5 L carton of milk equals to in ml The score on the entrance test for a well known law school has a mean score of 200 points and a standard deviation of 50 points. At value should the lowest passing score be set if the school wishes only 2.5% of those taking the entrance test to pass?