Yes because you are multiplying 3 z’s and also 3z’s
Answer:
Shown below
Step-by-step explanation:
First allocate the power of three to every number
= 
not sure what you mean by positive exponents, the exponents already are positive. Maybe you mean positive exponents and integers?
The answer is A, if the two values are the same because equivalent means equal to one another, or the same.
Hope this helps!
Using a graphical tool we obtain that the solution of this system
(intersection between the lines)
is given by the point
(x,y) = (2,4)