book Maths Puzzle Numerical Ability

If you know the height and area of a trapezoid can you find the lengths of its bases?

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book Other Question

Please hel me solve this problem. If y = 66 and y = 2/3x - 27, what is the value of x?

I had subtracted 27 from both sides.

Thank you!!!! Please Help me Factor X^2-5X+8^-2=2^-2