Answer:

Step-by-step explanation:
To evaluate
from the following expression:

Taking 


∴ 
I found width=13.72 ft and length=43.72 ft.
Call one dimension of the rectangle x, the other will be x+30
You want an area A=600 ft^2 but A=length x width=x*(x+30)=600
Rearranging you get:

solving this quadratic equation you get a negative solution and a positive one that gives your result.
Answer:
4
Step-by-step explanation:
<span><span>the answer is 10<span>x^7</span></span><span>y<span>^2</span></span></span>