exam Maths Puzzle Numerical Ability

The length of a rectangle measures 2x-3 and the width measures x+8. Express the perimeter of the rectangle as a binominal in terms of x

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exam Other Question

3x - 5x + x = Roberto invested some money at 7%, and then invested $2000 more than twice this amount at 10%. His total annual income from the two investments was $3980. How much was invested at 10%?