exam Maths Puzzle Numerical Ability

Here is another question I need assistance with. You have a rectangle that is 2 cm more than twice its width and the perimeter is 52 cm, what are the dimensions of this rectangle?

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n-n/3=1/2 Solve for n
this is not from a textbook. This from a handout from the teacher. When factoring the following by the reverse FOIL method, the factors of 6 must add up to the value of B in f(x) = x2 + Bx + 6; what are the possible values of B? @ The factors of 6