CCSS. Math: 7.RP. A.2, 7.RP. A.2b ty
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The grass in Jamie's yard grew 16 centimeters in 10 days. It was growing at a constant rate.
How many days did it take the grass to grow 1 centimeter?
days
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How many centimeters did the grass grow in 1 day?
centimeters
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He was paid 23 dollars for each lawn

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.