2(5m+4)=2(3m-10)
10m+8= 6m-20
-6m         -6m
4m+8= -20
      -8     -8
4m= -28
m = -7
        
             
        
        
        
Answer: 1296 cm³
Step-by-step explanation:
Since, the volume of a square pyramid is,

Where a = side of the square base,
h = height of the pyramid,
By the given diagram,
a = 18 cm,
h = 12 cm,
Hence, the volume of the given pyramid,



 cube cm.
 cube cm.
⇒ First option is correct.
 
        
             
        
        
        
the question is not so clear 
is it (x+3)/3 or what you have written is correct
Step-by-step explanation:
 
        
             
        
        
        
6 just trust me bro I’m a major in math