exam Maths Puzzle Numerical Ability

Find the axis of symmetry.
y = x^2 + 7x + 10

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solve and graph the solution of each inequality:??

4x-6>14 Sylvia somersaults from a 3 metre springboard. Her height in metres above the water t seconds after she leaves the board is given by the formula h=-4.9t^2+8.8t+3.How lon