There are 45 potential workers in this economy. How many people are unemployed?
The answer is 12

The number of people who are unemployed is 45.

The following information related to unemployment is:

It is the circumstance where the person is looking for a job or work but is not able to find out the work.

Unemployment should be determined by the unemployment rate i.e. the number of people i.e. unemployed treated as the labor force percentage.

Therefore we can conclude that The number of people who are unemployed is 45.

Explanation:

this means that germany had to pay the allied countries. reparations are/is essentially payment for something that they have done wrong, so after ww1, germany was forced to pay reparations so they could replenish the allied countries resources' that they had lost during the war.