How would i find this missing number?

Convert the density of surface sea water to metric tons/cubic meter

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 52 % of babies be born out of wedlock? in__52 % of babies will be born out of wedlock

Writing proportions. no solving. write all of them ! extraaa points.