exam Maths Puzzle Numerical Ability

-3w+3greater than or equal to 18

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exam Other Question

a piece of wire is shaped to enclose a square, whose area is 121sq. in. it is then reshaped to enclose a retangle whose length is 13in. What is the area of the retangle in square inches? Was I able to factor this correctly?
4x^2-15x-25
=(2x+5)(2x+5)