Answer:
Choice C:   
Step-by-step explanation:
To find your slope do:


that's how you get 1/2
4 is just the y-int.
 
        
             
        
        
        
Answer:
10.75+4.98+3.21=18.94
20-18.94= 1.06
Step-by-step explanation:
up their
 
        
             
        
        
        
Answer:
Step-by-step explanation:
5)               -7 (-15w + 21) + 3(18 - 27w)
Step 2:        105w - 81w - 147 + 54
6)      
step 3:       24w - 93
 
        
             
        
        
        
You do 9+3 which equals 12 then you multiply that by 4
        
                    
             
        
        
        
Im not 100% sure, but I would say that the answer is A. because the magnet must be strong enough to hold the switch in place, and keep the circuit connected