1.37x + 1.08y = 16.36
x + y = 13
x = 13 - y
1.37* (13-y) + 1.08y = 16.36
17.81 - 1.37y + 1.08y = 16.36
1.08y - 1.37y = 16.36 - 17.81
-0.29y = -1.45
y = 5
x + 5 = 13
x = 13-5
x = 8
He bought 8 notebooks and 5 book covers
        
             
        
        
        
Answer:
    Step One: Identify two points on the line.
    Step Two: Select one to be (x1, y1) and the other to be (x2, y2).
    Step Three: Use the slope equation to calculate slope. 
Step-by-step explanation:
 
        
             
        
        
        
The answer would be -72t because all you would have to do is multiply the expression
        
                    
             
        
        
        
Answer:
idk what exactly this is asking buut here is my best answer
Step-by-step explanation:
1+1=2(3+5=-1)
since 6 is the possible outcoe .idk what its exacly askign so if u can help with tht that wuld be grest .
Need 1 more brainliest