One bag of cookies weighs 6 ounces. How many pounds will 20 bags weigh? Give your answer in pounds and ounces.

6 x 20 = 120

120 ÷ 16 = 7.5

(16 because there are 16 ounces in one pound!)

7 pounds and 8 ounces!

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.