P=2(l + b)
P=2l + 2b
P-2b=2l
P-2b/2=l
C is your answer
written answer in the picture
For this case we have that by definition, the standard way to write the equation of a line, is given by:

Where a, b and c are integers.
Given 
We can write it in the standard way:

and by the previous definition, the numbers a, b and c must be integers.
Thus, we multiply the equation by 2, on both sides so as not to alter the equality.


Thus, the equation of
, in its standard form is given by:

Answer:
Option B
To find the answer,we can simply multiply 275 by 2-1/2:
275×2-1/2
=275×(2×2+1)/2
=275×5/2
=1375/2
=678-1/2
Therefore, the answer is 678-1/2.
Hope it helps!