Answer:
4%
Step-by-step explanation:
unemployment rate = unemployed people / total labor force
The total labor force = 100 million
The unemployed people can be calculated substracting the people who are employed full time and part time from the total labor force
unemployed people = 100 – 80 – 16 = 4
unemployment rate = 4 / 100
unemployment rate = 0.04 = 4%