Answer:
D. Lines coincide
Step-by-step explanation:
On dividing y/2y and 4/8 and x/2x you get 1/2. Since 1/2 is common answer for all the parts, lines will coincide.
Answer:
(2 * L)+(2 * W)
Step-by-step explanation:
Answer:
C. 81
Step-by-step explanation:
x^2-18x+81
(x-9)(x-9)