5.2 Exercise 89

Simplify each expression by applying several properties.

ⓐ $\left(5 t^{2}\right)^{3} \left(3 t\right)^{2}$ ⓑ $\frac{\left(t^{2}\right)^{5} \left(t^{−4}\right)^{2}}{\left(t^{3}\right)^{7}}$ ⓒ $\left(\frac{2 x y^{2}}{x^{3} y^{−2}}\right)^{2} \left(\frac{12 x y^{3}}{x^{3} y^{−1}}\right)^{−1}$