Using the Power of a Product Rule

Simplify each of the following products as much as possible using the power of a product rule. Write answers with positive exponents.

1. ⓐ $\left(a b^{2}\right)^{3}$
2. ⓑ $\left(2 t\right)^{15}$
3. ⓒ $\left(−2 w^{3}\right)^{3}$
4. ⓓ $\frac{1}{\left(−7 z\right)^{4}}$
5. ⓔ $\left(e^{−2} f^{2}\right)^{7}$