Answer:
becaus it is a low
Step-by-step explanation:
Answer:
The perimeter of rectangle is 
Step-by-step explanation:
Let
x-----> the length of the rectangle
y----> the width of the rectangle
we know that
----> equation A
---> equation B (area of the constructed figure)
substitute the equation A in equation B

using a graphing tool -----> solve the quadratic equation
see the attached figure
The solution is

Find the value of x
----> 
Find the perimeter of rectangle

3/8 + 1/8 = 4/8 = 1/2
The simplified answer is 1/2.
If you are setting it up as a proportion then you would muiltiply the 12 and x to get 12x. Then muiltiply the 80 and 1 to get 80. So 12x=80. Divide the 12 to get your final answer