You haven't told me what the question is.  But I put the mouse 
to my forehead, closed my eyes, took a deep breath, and I could 
see it shimmering in my mind's eye.  It was quite fuzzy, but I think 
the question is 
                   "What score does Andrew need on the next test 
                     in order to raise his average to 72% ?" 
The whole experience drew an incredible amount of energy 
out of me, and the mouse is a total wreck.  So we'll just go ahead 
and answer that one.  I hope it's the correct question.
The average score on 4 tests is
                                     (1/4) (the sum of all the scores) .
In order for Andrew to have a 72% average on 4 tests,
the sum of the 4 scores must be
                                         (4) x (72%)  =  288% .
Out of that total that he needs, he already has  
                            (64% + 69% + 73%) = 206%
on the first three tests.
So in order to average 72% for all 4 tests,
he'll need to score
                             (288%  -  206%)  =   82%
on the fourth one. 
        
             
        
        
        
Answer: 
 by AA.
Step-by-step explanation:
Finding the third angle in triangle XYZ,
,
Thus, 
 by AA.
 
        
             
        
        
        
Answer:
The answer is 3
Step-by-step explanation:
The answer is 3 because the number with x is always the slope.
 
        
                    
             
        
        
        
Answer:
169
Step-by-step explanation:
 7 + 6 = 13
13² = 169
hope this helps
 
        
                    
             
        
        
        
Square root of 4312 = 65.66582064