exam Maths Puzzle Numerical Ability

The denominator of a certain fraction is three more than twice the numerator. If 7 are added to both terms of the fraction, the resulting fraction is 3/5. Find the original fractio

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exam Other Question
How does one prove that the ratio of the areas of similar polygons equals the similarity ratio squared? Please help factor the following

y^2 - 6y + 9

This is what I have: (y- 3)^2

Thanks,

Lackinmath