2(+3+-4+-8++7, integer expression, calculation with distribution and calculation without distribution

Jim has run 5/6 of a mile so far. i hope that answers your question! good luck : )

A

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.