Solve the inequality below for x -5x-12(less than or equal to) 13

explain it using any of these vocab words:
polynomial expressions
graphing polynomial expressions
dividing polynomials
solving polynomial equations
rational functions

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?