the answer is 6.9. 
When you divide a negative by a negative it is a positive
 
        
             
        
        
        
Answer:  
<u>Step-by-step explanation:</u>
    





 
        
             
        
        
        
Answer:
the 3rd one from top 
Step-by-step explanation:
because the coefficient is largest
 
        
                    
             
        
        
        
Answer:
atleast 385
Step-by-step explanation:
Given that an electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricity, they would like know the mean daily power usage for homes there. 
Population std deviation = 
Sample size =
STd error of sample mean = 
Margin of error for 95% would be Critical value ( std error)
Here since population std dev is known we can use Z critical value= 1.96

Sample size should be atleast 385
 
        
             
        
        
        
Answer:
If the number is x, then the equation is;
x-m = 5 + n 
Step-by-step explanation:
Here, we want to write the given statement in algebraic form 
What number exceeds m by five more than n 
Let the number be x 
x-m = n + 5