book Maths Puzzle Numerical Ability

How do you find the exact square root of 500; not using decimals?

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book Other Question

what is the answer to this equation please show work!
Solve -14<3x+1<1
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negative forteen is less than or equal to three x plus 1 is less than one.
`655.1 + 9.56w + 1.85h -4.68a