X-1/2=15 1/4
15  1/4 = 15*4 + 1 = 61/4
61/4
x - 1/2 = 61/4
    +1/2   +1/2
61/4 + 2/4 = 63/4
x = 63/4 
        
             
        
        
        
Answer: 20% increase
Step-by-step explanation:
change/ original number
(60 - 50 / 50) x 100 = 20
20%
 
        
                    
             
        
        
        
Answer:
it's C
Step-by-step explanation:
-16 means where the line crosses y axis 
 
        
             
        
        
        
Answer:
D:  3(x + 5)(x + 5)
Step-by-step explanation:
Try multiplying the last answer choice (D); the result is 3(x^2 + 10x + 25), or
3(x + 5)(x + 5).
 
        
             
        
        
        
The answer would be 5866 because after it multiplied twice it would be at 8800 at that rate it would be gaining 1466.66 an hour so add that to 4400 and u get 5866