(5y-23)

(2x+13)

(3x)

47*

Simplify answer - 1410
x
2
y
+
9165
x
y
−
6486
x
2
−
42159
x

24 students walk to school

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.