According to the National Center for Health Statistics, in 1990, 28 % of babies in the United States were born to parents who
were not married. Throughout the 1990s, this increased by approximately 0.6% per year. If this trend continues, in which year will 79% of babies be born out of wedlock?
Subtract 79% by 28% to find out how much % you would have to rise. We get 51. We will divide that by 0.6 because we want to know how many 0.6's are in 51 years.