Solve 4x- c= k for x.
O A.
x-**
k+c
4
O B. x = 4(k-c)
O c.
X =
K-C
4
O D. x = 4(k+ c)

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?