exam Maths Puzzle Numerical Ability

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A triangular sail has an area of x^2 + 5x + 6 square meters and a height of x + 3 meters. Find the length of the sail's base.

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exam Other Question

The length of a rectangle is 10 in. more than twice its width. If the perimeter of the rectangle is 32 in., find the width of the rectangle. The sum of two numbers is 50 and their difference is 18. Find the numbers.

Im so confused could someone please help?