Solve for v.
8 + 5v = -12
Simplify your answer as much as possible.

What is the base of 1/9 to the power of 2

How do you solving the solution of each system using elimination?

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?