The leng
X+6
long
Kevin had a total of 160 minutes to read,
do homework, and play video games.
He spent x minutes reading
He spent 2(x+7) minutes doing
homework
He spent 35 minutes playing video
games.
How many minutes did Kevin spend
reading?

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.