exam Maths Puzzle Numerical Ability

Solve and graph the solution set.
11x + 2 "is greater than or equal to sign" 10x + 13

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exam Other Question

Find the axis of symmetry:
y = x^2 - x + 10

I can not seem to understand this method, I did look back at some other ones, but felt it confused me even more, help please, thank you!!! THE PERIMETER OF A RECTANGLE IS 96. THE LENGTH OF THE RECTANGLE IS SIX LESS THAN TWICE THE WIDTH. FIND THE DIMENSIONS OF THE RECTANGLE.