What is a simplified expression for the perimeter of the polygon?

D. 5x^2 + 2y^2 + 12x + 5y

Step-by-step explanation:

6x + 2y + y^2 + 6x + 2y + y^2 + 4x^2 + x^2 + y

6x + 6x = 12x

12x + 2y + y^2 + 2y  + y^2 + 4x^2 + x^2 + y

2y + 2y + y = 5y

12x + 5y + y^2 + y^2 + 4x^2 + x^2

y^2 + y^2 = 2y^2

2y^2 + 4x^2 + x^2 + 12x + 5y

4x^2 + x^2 = 5x^2

2y^2 + 5x^2  + 12x + 5y

5x^2 + 2y^2 + 12x + 5y

The report is very correct

Step-by-step explanation:

First of all, trees provides the following to an area like a park;

1. Large source of Oxygen

2. Wind break mechanism

3. Shades for protection against harsh weather

4 Aesthetic

and so on...

So for a park, it is only logical to have more trees as the number of visitors increase. It can be determined that number of visitors is directly proportional to number of trees