exam Maths Puzzle Numerical Ability

If a quadrilateral has two sides that are both parallel and congruent, is the quadrilateral a parallelogram?

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exam Other Question

Hi. May I have some help with the following equation?

Find all real solutions of the following equation. (If there are extra answer boxes, enter NONE.)

(x/(x+7))^2 = (4 x)/(x+7) - 4 I am suppose to solve the equations and then check my answer. Where do I start?
sqrtx+4=3
I can put it like this too and the radical sign covers the x+4.
√x+4=3