I've been at this for half an hour Help

Answer:
[tex](-\frac{3}{4})^1^0[/tex]
Step-by-step explanation:
[tex]((-\frac{3}{4} )^5)^2[/tex]
==> simplify using the power of a power rule
[tex](-\frac{3}{4})^1^0[/tex]
Power of a power rule
[tex](x^a)^b=x^a^*^b[/tex]
explanation of rule : multiply the two powers and keep the base the same