Answer:
10
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
dg
Step-by-step explanation:
 
        
             
        
        
        
L x W x H 
so 5x5x5 = 125 cm^2 bc its a cube
        
             
        
        
        
6x - 9x - 5 =
combine like terms
6 - 9 = - 3
- 3x - 5 = 
leave x by itself
- 3x - 5 = 
+3x
___
  0
       - 5 = 3x
solve for x (division)
        
- 5 = 3x
       ___
         3
-5/3 = x         OR         x = -5/3
        
             
        
        
        
A. x=the cost of one lunch. 60.25=5x+3(x-5.25)
b. 60.25=5x+3x-15.75                    60.25+15.75=8x-15.75+15.75
 76=8x                  76/8=8x/8              9.50=x
A lunch is $9.50. If you are not sure, check my answers. Hope this helped.