8.  You can graph this or use the summation function on the TI computer.  
        
                    
             
        
        
        
Step-by-step explanation:
I think you mean you want to find out 40% of a number,, when 60% of it is 180, so I'll answer that:
60% = 180
 ÷6
10% = 30
 x4
40% = 120
(if you want to find 100%, multiply 30 by 10)
Hopefully this helps :)
 
        
             
        
        
        
Answer:
Step-by-step explanation:
x < -12, so x+12 < 0
| x-(-12) | = | x+12 | = -x-12
 
        
             
        
        
        
Answer:
I THINK it's A
Step-by-step explanation:
 
        
             
        
        
        
Answer:
1,099.88
Step-by-step explanation:
Just add everything to get that.