<span>Multiply the second equation by −4 to get −16x − 4y = −80 and </span>Multiply the first equation by 2 to get 4x + 8y = 28 both creates <span>an equivalent system such that, when combined with the other equation, one of the variables is eliminated</span>
Answer: The answer is (D) 
Step-by-step explanation: Given that there is a rectangle, where length of the rectangle is given by

and width of the rectangle is given by

We are to find the perimeter of the rectangle. To do so, we need to add two times length with two times breadth of the rectangle.
Therefore, perimeter is given by

Thus, the correct option is (D).
Answer:
Angle BCD is an isosceles triangle
Step-by-step explanation:
BD = BC