Really easy question help me now please!

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

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny