Answer:


Complete
Solution: 
Based
on the low estimate, the US population
will not double by 2100.
Based on the middle and high estimates, it
will more than double.
None of the estimates shows
a 400% increase. 
The estimated US population
in 2000 was about 275 million people. Note that a 100%
increase is the same as doubling which gives 550 million
people. An increase of 400% would mean the 2000 population
plus 4 times the population.
275,000,000 + (4 ×
275,000,000) or
5 ×
275,000,000,
which is 1,375,000,000 people.
Comparing the doubled 2000 population and
projected 2100 population, the low estimate is the only
one that is not at least doubled. None of the estimates
in the graph supports a 400% increase.


Low
Estimate 
Middle
Estimate 
High
Estimate 
2000 
275,000,000 
275,000,000 
276,000,000 
2100 
283,000,000 
571,000,000 
1,182,000,000 
Double
the 2000 Population 
550,000,000

550,000,000 
550,000,000 
400%
Increase of the 2000 Population 
1,375,000,000 
1,375,000,000 
1,380,000,000 


