The following table gives the number of women age 16 years and older (in millions) in a country's Kovillan workforce for selected years from 1950 and projected to 2050. Complete parts (a) and (b) below. Women in the Year Workforce (millions) Year Women in the Workforce (millio 1950 18.6 2010 75.3 1960 21.1 2015 77.2 1970 30.6 2020 79.8 1980 45.8 2030 80.8 1990 56.4 2040 86.1 2000 65.9 2050 91.9 a. Use x as the number of years past January 1st, 1950 to create a cubic model, y, using these data. (Type integers or decimals rounded to five decimal places.) b. During what year does the model indicate that the number of women in the work force will reach its maximum? (Round down to the nearest year)