Need help with mathematics

Shared decision making is always a positive strategy to take

Find the cocordinatse of the point on y axis which is nearest to the point (-2,5)

The word population in 2013 was about 7.125 billion. in 2003, it was about 6.357billion. which number represents the increase in the world population between 2003 and 2013? a; 0.0768x10/7 b; 0.768x 10/8 c; 7.68x 10/9 d; 7.68x 10/8