hi. i need answer on the questions below. please take note that and are unit vectors. thank you

7. (A + B) + (C+ D) = (B+ C) +(A+ D). True False 8. Two vectors are parallel. Which of the following is always true? A. The magnitude of the two vectors are always the same. B. The direction of the two vectors are always the same. C. The direction of the two vectors can be different. D. The magnitude of the two vectors are fixed. O. If you find the sum of negative vectors, you will get A. Zero vector B. Identity vector C. Vector sum D. Vector difference 10. What is the y component of this vector: C = -41 + 6j newtons A. 2 newtons B. -4 newtons C. 6 newtons D. -8 newtons 11. You are adding two vectors, E and G. You want to find the x-component of the resultant vector of E and G. Which of the following represents the x-component of the vector sum? A. Ey + GX B. Ey + Gy C. Ex + GX D. Ex + Gy 12. You want to get the magnitude of the resultant vector of two vectors, H and I. Which of the following expressions will lead to this? O ( Hx + Ix ) + ( Hy + ly)2 O ( Hx + ly ) 2 + ( Hx + ly)2 O \\ ( Hx + 1x) 2 + ( Hy - ly)2 O (Hx + Ix) 2 - (Hy + ly)2