Answer:
30 of 2 points= 60 points
10 of 4 points = 40points so its 30 of 2 points and 10 of 4
Step-by-step explanation:
 
        
             
        
        
        
C because if it was constant then for day 3 the distance would be 65.4 instead of 64.8
        
             
        
        
        
Given conditions are :
In 1980's, a typical middle-income household earned=  $34,757
In 2009, a similar middle-income household earned= $38,550
And we have to find relative increase in income for these households from 1980 to 2009. 
So first we will find the total increase in amounts. 

Relative increase = 
= 10.91% or rounding it off we get approx 11%.
Hence, the answer is 11%.
 
        
                    
             
        
        
        
Answer:
Yes they are congruent by SAS (wrong answer)
Edit: the correct answer is by HL
 
        
                    
             
        
        
        
Answer: 
fx(x)=[(4! /(x!)*(4-x)!]*[(0.3) ^x]*[(0.7) ^ (4-x)] 
Step-by-step explanation:
F(x) is been calculated by considering X (moderate) as one outcome and low and high combined as one outcome now probability function will be same as binomial distribution 
F(x) = [(4! /(x!)*(4-x)!]*[(0.3) ^x]*[(0.7) ^ (4-x)]