Answer: There were 469,532 American prison for drug related offenses in 2015.
Step-by-step explanation:
Since we have given that
Number of Americans in prison for drug related offenses in 1980 = 40,900
Rate of increment in Americans in prison from 1980 to 2015 = 1048%
So, Number of Americans who were in prison for drug related offenses in 2015 is given by
[tex]\dfrac{100+1048}{100}\times 40900\\\\\dfrac{1148}{100}\times 40900\\\\=1148\times 409\\\\=469,532[/tex]
Hence, there were 469,532 American prison for drug related offenses in 2015.