Make columns for starting salaries of $30,000 and $33,000, respectively, for the new employees. Assume the Black applicant earns a 4% increase per year and the White applicant earns a 6% increase per year, based on their performance evaluations. What are the salary differences after ten years? After twenty years?

Make another column, based on the assumption that the White applicant receives promotions every three years and the Black applicant is promoted every five years. For promotions, assume a salary increase of an additional 10%. What are the salary differences after ten and twenty years given the differences in initial salaries, in increases, and in promotion rates?