Sub-saharan africa's population growth is

1.decreasing
2.negative
3.positive
4.stagnant

3.positive

Explanation:

According to new researches the population of the  subsaharan african region is incerasing and will be the region that will increase the most its population, doubling its population in the next 20 years, from 1.1 nbillion to 2.4 billion in 2050 approximately. This means that the population growth is positive.

the act of deciding on matters of the economy. economic decision making is routinely conducted by finance ministers, economic advisors, heads of major central banks and business leaders and can have profound effects on a major economy.

answer; the best answer is (demand);