I would say d that what i got.
it depends how long the width and the length is. If the length is 5 cm and the width is 4 cm the perimeter will be 18cm. All you have to do is 5 doubled because there 2 sides for the length and 4 doubled because there are 2 sides for the width. I hope I have answered your question. XD
Answer:
y=
x-1
Step-by-step explanation:
You can find this since the y-intercept is negative 1 and every x, y goes up by 
Its right,vertical,and complementary.Hope this helps you a bunch!