exam Maths Puzzle Numerical Ability

the perimeter og a rectangle is 40m. the length of the rectangle is 4m less than twice the width. find the length

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exam Other Question

Please Help. Solve the following system of linear inequalities graphically 3x+2y is less than or equal to 12 and x is greater than or equal to 2. I have to know how to solve permutations. Could you please list the process, step by step?