If you take 3,061,707,850 and divide it by 4 (40%) then 10% of the population is 765,426,962.5. Then you multiply 765,426,962.5 time 10 to reach 100% fo the population, which is 7,654,269,625.
A!! -2 and 2 are the x values of the coordinates which are 4 units apart, being 4 units in LENGTH 1 and -2 are 3 units apart and them being in the y part of the coordinate it’s 3 units wide
