Which expression represents the volume, in cubic units, of
the composite figure?
(52)(13) -
(52)(12)
ort(52)(13) – (52(25)
7 (52(13) + (52)(12)
7t(52)(13) +
(52) (25)

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.