A) 14:10 = 7:15
b) 8:5
c) 5:10 = 1:2
d) 8 + 14 + 5 + 10 + 5 = 42
14:42 = 7:21 = 1:3
Answer:
45
Step-by-step explanation:
5 times 10 equals 50
50-5 equals 45
Answer:
C.
Step-by-step explanation:
Symbols is a broad category so you logically can't be wrong with that answer
You add/subtract complex numbers simply by adding/subtracting real parts and imaginary parts.
So, the real part of this sum is the sum of the real parts:

And the imaginary part of this sum is the sum of the imaginary parts:

So, you have
