1) (2i-4)-(6i+9) = 2i-4-6i-9 = -4i-13
2) (-3+8i)+(3-8i) = -3+8i+3-8i = 0+0i = 0
Answer:
20
Step-by-step explanation:
8/2 equals 4 and 5 x 4 = 20.
£13.5
£40.5
Let the amount of shares be x and 3x
Therefore,