The percentages W(t) and M(t) of women and men, respectively, who have completed four or more years of college are modeled by the system shown to the right, where t is the number of years since 19791979. p equals Upper W left parenthesis t right parenthesis equals 0.52 t plus 12.78p=W(t)=0.52t+12.78 p equals Upper M left parenthesis t right parenthesis equals 0.32 t plus 21.08p=M(t)=0.32t+21.08 Use substitution or elimination to estimate when the percentage of women who have completed four or more years of college was/will be equal to the percentage of men who have completed four or more years of college. What was/will be that percentage? Percentages of Adults Who Have Completed Four or More Years of College Percent Year Women Men 19841984 15.715.7 22.922.9 19891989 18.118.1 24.524.5 19941994 19.619.6 25.125.1 19991999 23.123.1 27.527.5 20042004 26.126.1 29.429.4