Suppose potential output grows 2 percent per year and the natural rate of unemployment is constant at

Question:

Suppose potential output grows 2 percent per year and the natural rate of unemployment is constant at 6 percent. In 2020, the unemployment rate is 7 percent.
a. Assuming Okun’s law, what is the output gap in 2020?
b. If output grows 5 percent from 2020 to 2021, what is the unemployment rate in 2021?