So our original equations would be..


(a) perimeter in terms of y

(b) area in terms of y
*I'm actually not sure about b.. sorry*
(c) if perimeter = 28, find length


Since abc is similar to deftherefor ac/df = bc/ef7/28 = bc/36bc = 9 feet
Answer:

Step-by-step explanation:
I will upload an image with all of my work.
I will also upload a graph which shows that both expressions are equal.