Help!! Triangle similarity! Solve 1, and 2! Please explain the steps!

The formula to determine energy is e=1/2mv2? what is the formula solved for v?

The slope of the line whose equation is 3y = 2x - 3 is 2 2/3 3/2

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