An archaeologist found a fossil that has a length of 56.91 ft. Use the table of facts to find the length of the fossil in inches.
Round your answer to the nearest tenth.

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.