Answer:
x = 0
Step-by-step explanation:
 
        
             
        
        
        
Let's see all the steps:  
1)  operation  : 5 options
2) only one option: we ignore it
3) the third operation: 6 options
4): 2 options.
So we have 5 options, 6 options and 2 options: and they are independent of each other. This means that we multiply the numbers, and 5*6*2=60 So the answer is 60!
        
                    
             
        
        
        
Answer: 60% increase followed by a 40% decrease belongs in less than original. A 50% increase followed by a 33 1/3 decrease also belong in less than original. A $20 decrease followed by a $20 increase belongs in same as original. A 75% decrease followed by a 50% increase belongs in less than original. A 100% increase followed by a 33 1/3 decrease belongs in less than original.
Step-by-step explanation:
Hope this helps :)
 
        
             
        
        
        
Answer:
45.05
Step-by-step explanation:
 The answer is 45.05 because I multiplied ( b and a) 8.5x5.3 and then I got 45.05.
 
        
             
        
        
        
Answer:
The Standard Deviation is a measure of how spread out numbers are. You might like to read this simpler page on Standard Deviation first. But here we explain the formulas. The symbol for Standard Deviation is σ (the Greek letter sigma)