Answer:
The American population was 20% of the British population.
Step-by-step explanation:
Let us call  the american population,
 the american population,  the British population before the migration, and
 the British population before the migration, and  the population that migrated from America to Britannia.
 the population that migrated from America to Britannia. 
Now, the population  that migrated was 20% of the american population:
 that migrated was 20% of the american population: 
 ,
,
and the same population  increase the British population by 4%:
 increase the British population by 4%: 

Combining equation (1) and (2) we get: 



Thus, the American population was 20% of the British population.
 
        
             
        
        
        
Answer: 5 the gcf is 5
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
when you subtract a negative number the two negative signs cancel out and it turns to a positive number 
Step-by-step explanation:
in -6 - (-2)
the two - signs cancel out so it ends up being 
-6+2 which is why it equals -4
 
        
                    
             
        
        
        
Answer:
The division was computed incorrectly.
Step-by-step explanation:
Given
Workings:
 to percentage
 to percentage

Required
Explain his error
The question says 5/8
Instead, Alejandro's working shows 8/5.
This working is done in an incorrect order and the correct solution is:
Let 

Solve the fraction

Multiply by 100%


<em>Hence, option (a) is correct.</em>