Answer:
31.50
Step-by-step explanation:
I added 8 +8+8+8+8 got 40 then subtracted 8.50
 
        
             
        
        
        
If he runs 30 minutes a day and does a lap in 5 minutes then divide 
        
             
        
        
        
I'd say around 10%
4 out of 10 = 40%
3 out of the 10 are sold = 30%
1 out of the 3 might be bad = 10%
I may be wrong.
        
             
        
        
        
6x³y + 6xy − 12x² − 12 = 6(xy-2) * (x²+1)
(x²+1) is a factor of 6x³y + 6xy − 12x² − 12 
 
        
             
        
        
        
Answer:
-16
Step-by-step explanation:
4a+(-8)
4(-2)+(-8)
-8+(-8)
= - 16