1. 6x-15
2. 18x-55
3. 7.2x+2.3y-2
        
             
        
        
        
Answer:
The initial value of 600 is larger and larger by 24. 
Step-by-step explanation:
First of all a 20% decreased of 600.
So, the new value will be  .
.
Now, then it is increased by 20% i.e. 480 will be increased by 20%.
So, the new value will be  .
.
Therefore, the initial value of 600 is larger and larger by (600 - 576) = 24. (Answer)
 
        
             
        
        
        
9514 1404 393
Answer:
   6/2
Step-by-step explanation:
The slope is given by ...
   slope = (y2 -y1)/(x2 -x1)
   slope = (13 -7)/(4 -2) = 6/2
__
The value of the slope can be simplified to ...
   slope = 3
 
        
             
        
        
        
Answer:
94.7
Step-by-step explanation:
15.50+10*0.99*8