book Maths Puzzle Numerical Ability

Condense the expression. 3log(base 10)2-log(base 10)y+1/3log(base 10)x

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book Other Question

4 2 2
X - 4x y
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4 3 2 2
x -4x y+4x y
my questions please send a.s.a.p.
1) Is every squar a rectangle? true or false

2) Is every parallelogram a quadrilateral?

3) Is every rhombus a rectangle?

4) Is every p