Unit rates are easy you just take the first number and divide it by your second 
15 divided by 5 is = 3 
75 divided by 25 is = 3 
80 divided by 4 is = 20 
Please mark brainiest 
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Answer:
The first answer is correct.
(x + 1)^2 + (y - 2)^2 = 1
A circle with the midpoint M(Mx, My) and the radius r can be written as
(x - Mx)^2 + (y - My)^2 = r^2
 
        
             
        
        
        
The denominator is 4 and the numerioar to make factor 1/2 would be 4/8 then 1/2
        
                    
             
        
        
        
Do u know the area of a circle
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Answer:
Sampling distribution
Step-by-step explanation:
The sampling distribution of a sample statistic is the probability distribution of the population of all possible values of the sample statistic.