Answer:
A and A is the answer. so this is the answer 
 
        
                    
             
        
        
        
Four terms are used when grouping to factor.
        
             
        
        
        
Answer:
i'm not too good in this, but i believe the answer is -3
Step-by-step explanation:
the hcf, highest common factor, of both -3 and -15 is -3, hence making the answer -3? if this is incorrect, i apologize. 
 
        
             
        
        
        
Answer:
He needs 3.75 lbs of sugar and 1.25 lbs of water.
Step-by-step explanation:
Let x lbs be the amount of sugar in the syrup. Then 5-x lbs is the amount of water in this syrup.
Note
5 lbs - 100%
x lbs - 75%
Write a proportion:

Cross multiply:

So, he needs 3.75 lbs of sugar and 5 - 3.75 = 1.25 lbs of water.
 
        
             
        
        
        
Answer:
Option C) 5.62 points   
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 20
Sample mean score = 64
Sample standard deviation, s = 12
Degree of freedom = 

We have to calculate margin of error for a 95% confidence interval.
Formula for margin of error:
 
  
Putting the values, we get,  
 
  
 
  
Thus, the correct answer is 
Option C) 5.62 points