exam Maths Puzzle Numerical Ability

Find the maximum value of y=-x squared+6x

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exam Other Question

Tutor could you help me please? How do I subtract:

4x+1over25x^2+15x+2minus3x-2over 30x^2+11x+1

Thank you
A proposal was made in the state senate to raise the minimum wage from $6.75 to $7.15 an hour. What is the proposed percent of increase to the nearest tenth of a percent?