Answer:
I think it may be D
Step-by-step explanation:
A coefficient is the number being multiplied by the variable. A variable is a letter that holds an number like  w x 7=?  W=6. And a constant is the number by itself. In this expression 5000 is the constant 20 is the coefficient and teh variable is w so I think it is D
 
        
             
        
        
        
Answer:
Step-by-step explanation:     This is five-fold proportion
The first ratio gives solution namely
We will write general proportion  
a:b= c:d= e:f = g:h= i:j = k
According to this the first ratio gives coefficient k
When we divide 24/2 =12 our coefficient k=12
In the second ratio we will multiply 3 with 12 and get 36.
In the third ratio we will multiplu 5.5 with 12 and get 66.
In the fourth we will divide 108 with 12 and get 9.
In the fifth we will multiply 15 with 12 and get 180.
Finally the ratio is 24:2=36:3=66:5.5=108:9=180:15
 
        
                    
             
        
        
        
Step-by-step explanation:
154 centimeters =
5.05249344 feet (5 feet ⅝ inch)
 
        
                    
             
        
        
        
Answer:
Mean absolute deviation (MAD) of a data set is the average distance between each data value and the mean. Mean absolute deviation is a way to describe variation in a data set. Mean absolute deviation helps us get a sense of how "spread out" the values in a data set are.
Step-by-step explanation:
To find the mean absolute deviation of the data, start by finding the mean of the data set. Find the sum of the data values, and divide the sum by the number of data values. Find the absolute value of the difference between each data value and the mean: |data value – mean|.