The world population is estimated to be nearly 9 billion by the year 2050.

north america- 7.9%

south america- 5.3%

europe- 7.1%

africa- 20%

asia- 59%

other- 0.7%

what is the estimated population of africa in the year 2050?

The world population is estimated to be nearly 9 billion by the year 2050.

Africa- 20%

What is the estimated population of Africa in the year 2050?

9 billion x 0.2 = 1.8 billion

answer: the answer to this problem is 2x and 2-x both have x as well as 2

step-by-step explanation: first you have to see what is the closest thing they have similar second you note it example 4x and 4+x they both have x and 4