Answer:
10
Step-by-step explanation:
10-10=0
 
        
                    
             
        
        
        
x= | 1 < x < 3 
x + 2 < 5 and x - 7 > -6
x < 5 - 2 and x > -6 + 7
I don't know if I am 100% right.
 
        
             
        
        
        
The slope is the change in Y over the change in X:
Slope = (3 -12) / (4-0)
Slope = -9/4
The answer is the 3rd choice.
 
        
             
        
        
        
260 students is the prediction for how many sweatshirts will be sold so no they will not sell all of them