Answer:
41/5
Step-by-step explanation:
First we change the 8 and 1/5% to 8.2% 
Write the fraction down as a number over one = 8.2/1
Multiply both top and bottom by 10 for every number after the decimal point:
As we have 1 numbers after the decimal point, we multiply both numerator and denominator by 10. So,
8.2/1 = (8.2 × 10)
(1 × 10) = 82/10
Reduce the above fraction by dividing both numerator and denominator by the GCD (Greatest Common Divisor) between them. In this case, GCD (82,10) = 2. So, (82÷2)/(10÷2) = 41/5 when reduced to the simplest form.
As the numerator is greater than the denominator, we have an IMPROPER fraction, so we can also express it as a MIXED NUMBER, thus 82/10 is also equal to 81/5 when expressed as a mixed number.
 
        
             
        
        
        
The exterior angle of a pentagon is 72°
        
             
        
        
        
Answer:
$66.50, and you saved $28.50
 
        
             
        
        
        
The previous population was 14000.
Explanation
The population decreased by 35% since the last measurement. So the current population is less than the previous population. 
current population=9100
previous population =x
current population is 35% less than the previous population x

The previous population was 14000.
 
        
             
        
        
        
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