If f(x)=x-4 and g(x)=2x-3, find f o g

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?

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?