The length of an edge is the cubic root of the volume.
Cubic root 1.8 = 1.2 meters
 
        
             
        
        
        
Answer:
lets find the exact value of w
7w - 7 = 7
+7        +7
7w = 14
/7     /7
w = 2
Now let's replace w with 2
5(2) + 1 = 11
 
        
             
        
        
        
Answer:
2.5 f
Step-by-step explanation:
 
 5
F x —
 2
5
— f
2
I hope it's help :)
 
        
                    
             
        
        
        
Answer:
Shira: x = 8
Samuel: m = 0
Step-by-step explanation:
Shira's mistake was that she subtracted 2 from both sides instead of adding to on both sides. 
Correct Solving: 
2x - 2 = 14
Add 2 to both sides;
2x = 16
Divide both sides by 2;
x = 8
Samuel's mistake was that when he distributed -2 to 8m and 8 he put the wrong sign for -2 * 8.
Correct Solving:
-2(8m + 8) = -16
Distribute;
-16m - 16 = -16
Add 16 to both sides;
-16m = 0
Divide both sides by -16;
m = 0