NEED ASAP ⚠️⚠️⚠️⚠️ Identify whether each equation has one solution, Infinitely many solutions, or no solution.
1) 1/5f-2/3= -1/5f +2/3
2) -1.7v+2.8=1.4v-3.1v+2.8
3) 2/5z-3/2=5/2z-1
4) 4a-3+2a=7a-2

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