Help asap!! solve for both of the questions, will reward if correct

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

What is the solution to the inequality? 6x−5> −29, a x> −4 bx> 4 cx< 4 dx< −4

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)