What is the equation of the circle with center (5, -4) and radius 4?
a) (x – 5)2 + (y + 4)2 = 4
b) (x + 5)2 + (y – 4)2 = 4
c) (x – 5)2 + (y + 4)2 = 16
d) (x + 5)2 + (y – 4)2 = 16

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