I need help with these questions. standards (A+Bi)

Simplify. Write all answers in standard form (A + Bi). 1. (3 + 61) - (2+81) 2. (-2 - 1) + (3-51) 3. (4 + 2i) (5i) 4. (-3 - 21) (-3+ 21) 5. (5 + 1) (-3 -21) + 7i-in2 r 6. (2 + 3i) / (-3+21) 7. (-4-1) / (21) 8. Graph A (3 + 4i), B (-1 - 2i), C (-7i), and D (3) on the same Complex Plane. Label the points A - D. 9. What is |3 + 5i|? Simplify the radical, if necessary. 10. What is the |-6i|? Simplify the radical, if necessary. 11. What is in15? 12. What is in24? 13. What is in3? 14. What is in14? 15. Simplify v(-40). Simplify the radical, if necessary