<h2>
Answer: -5*-10</h2>
Step-by-step explanation:
Well the perimeter is 12x2 +16x2=56cm
I got 5 times 45 because I multiplied by 5 to get my answer.
Here it is given that the width is x ft and total length of the fence is 2400 ft .
Let the length be y ft
So we have

Let A represents area, and area is the product of length and width .
So we get

Substituting the value of y, we will get

Second part
The area is maximum at the vertex, and vertex is

And

And that's the required dimensions .
Answer:
8*5^n-1 / 2^n-1 = n
This is the function for your sequence