Answer:
   12.5 s
Step-by-step explanation:
If acceleration is constant, speed is proportional to time. To increase the speed by 50 km/h, the car will need an additional time given by ...
   t/(50 km/h) = (20 s)/(80 km/h)
   t = (20 s)(50/80) . . . . . multiply by 50 km/h
   t = 12.5 s
It will take 12.5 more seconds for it to reach a speed of 130 km/h.
 
        
                    
             
        
        
        
I think it is 64 cause i  multiplied
        
             
        
        
        
Answer:
45
Step-by-step explanation:
6 to the power of 2 + 3 to the power of 2
6² + 3²
(6 × 6) + (3 × 3)
36 + 9
45
 
        
             
        
        
        
So I'm assuming the answers have to be the same?? if that's the case, 457×32=15904 so you would subtract 994 from 15904. That means the answer is 14,910. I hope this helped!