book Maths Puzzle Numerical Ability

c.d=d.c
(b+22)+3=(22+3)
6n+(9+4)+5

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book Other Question

If 48 square inches are subtracted from the area of a square table, the result would be equal to twice the perimeter. What is the length of the side of the table?
______ feet long
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In the expression (-2)^5, the 5 is called the ______________, and the -2 is called the _____________________.