exam Maths Puzzle Numerical Ability

please help me to solve this problem
1/2+27+y+12

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exam Other Question

A rectangle has sides of 5x-12 and 5x+12. What is the area of the rectangle? In side the rectangle two squares with sides of x and x are to be removed. What is the remaining area of the rectangle? Explain or show how you could use a grid paper to draw a retangle with a perimeter of 18 units.