exam Maths Puzzle Numerical Ability

For the quadratic function Q(x)=x^2+5x-36, determine the exact value of the minimum.

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exam Other Question

How many liters of a solution containing 22% sugar and how many liters of another solution containing 31% sugar must be mixed together to make 680 liters of solution containing 27% sugar? Adult tickets for a play cost $18 and child tickets cost $14. If there were 26 people at a performance and the theater collected $396 from ticket sales, how many children attended the play?