Treat this like a slope formula. Y2-y1 divided by x2-x1.
Your y2 value is the second population
Y1= value of first population.
X2= second year they give
X1= first year they give.
4700-3650
_________
2014-2012
1050
____
2
525 is the increase a year
Its important to know math inn life helps you with lots of skills like science does
Its R
you can just see in figure as square root of 50 is approximately around 7.07
We will need a little more to answer on that that please.