Which box-and-whisker plot represents this data: 6, 9, 13, 13, 18, 20, 24, 25, 26, 28, 30, 30

Is 8.50 an answer or no? ?

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

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