To find the value of \( x \) that represents the year 2020, we can use the formula:
\[ x = \text{year} - 1950 \]
For the year 2020:
\[ x = 2020 - 1950 = 70 \]
Now, to find the number of women in the workforce in 2020, we can substitute \( x = 70 \) into the function \( P \):
\[ P = 0.79x + 20.86 \]
Substituting \( x = 70 \):
\[ P = 0.79(70) + 20.86 \] \[ P = 55.3 + 20.86 \] \[ P = 76.16 \]
Thus, the number of women in the workforce in 2020 will be approximately 76.16 million.
Final Responses:
- The value of \( x \) that represents 2020 is \( 70 \).
- The number of women in the workforce in 2020 will be approximately \( 76.16 \) million.