Step-by-step explanation:
"If the sum of 2 angles is 180°, then each is the supplementary angle of the other".
Answer:
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Step-by-step explanation:
To find the unemployment rate we have the next expression:

We have the next data:
200 million employed
20 million unemployed
40 million umemployed are not looking for a job
Then the total labor force will be the employed and the unemployed population then de have 260 million



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Its eeither transposing or trabsposition
According to the probles represented above, there is addition of two angles which makes it totally clear. I am pretty sure that the answer with the actual reason of this task is the second option <span>B. Angle Addition Postulate, as you can see a couple of new angles in there :)
Regards!</span>