The hardware store had a pile of leftover boards. The lengths of the boards are displayed in the chart below. Length of Board (ft) Frequency 0.01 ft 17 0.03 ft 48 0.2 ft 82 0.3 ft 64 0.7 ft 81 If all of the boards that measure 0.03 feet each are lined up end-to-end, how long would they be altogether?​

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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.