Answer:
Zac is 9.
Step-by-step explanation:
Half of 6 is 3, and 6 years older would be 9!
1. add the side lengths
6xy²z^4
= ∛(6³)(x³)(y³)(y³)(z³)(z³)(z³)(z³) = 6x·y·y·z·z·z·z = 6xy²z^4
-6
Reduce the expression by cancelling common factors