Find the real solution of the equation

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

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.