C) Protects against their environmental
Let the first integer be
. So, the next even number is 
Let's translate the formula: the square of the second is
, twice the first is
. So, the equation is

Expand the square to get

The solutions to this equations are

So, the possible consecutive even numbers are

3 over 20 is the fraction in simplest form.
Answer:
1/2D meters
Step-by-step explanation:
I hope this helps
3(5x-3)=3x+39
15x-9=3x+39
12x=48
x=4