Answer:41
Step-by-step explanation:
8 - (-5) - 4(-7) = 8+5+4*7=13+28=41
 
        
             
        
        
        
Answer:
$60
Step-by-step explanation:
1200*0.05 = $60
 
        
             
        
        
        
Answer:
d (w) = 0.1w² – w+ 5
Step-by-step explanation:
d(w) = c(w) - a(w) 
= -0.3w²+2w+13 -(-0.4w²+3w+8)
= -0.3w²+0.4w²+2w-3w+13-8
= 0.1w²-w+5
 
        
             
        
        
        
Answer:
a
Step-by-step explanation: