Answer:
11
Step-by-step explanation:
z = 2; therefore, f(z) = f(2).
The letter/number inside of the bracket replaces the original letter, in this case w.
f(w) = 2w^3 - 5
f(2) = 2(2)^3 - 5
f(2) = 2(8) - 5
f(2) = 16 - 5
f(2) = 11
As a result, f(z) = 11
