Answer:
5 points per post and 2 points per replies 
 
        
             
        
        
        
Answer:
 ,
 , 
Step-by-step explanation:
Volume: length* height * width
In the first diagram:

The volume is  cubic feet
 cubic feet
Next diagram:

The volume is  cubic yards
 cubic yards
 
        
                    
             
        
        
        
Answer:
x=2
Step-by-step explanation:
5x - 6(x + 1) + 8 = 0 
Distribute
5x -6x-6+8 =0
Combine like terms
-x+2 = 0
Add x to each side
-x+2+x = 0+x
2 =x
 
        
             
        
        
        
Answer:
Step-by-step explanation:
this is exactly the same as the 1st one,  just  they put it in a different orientation.   sooo use law of cosines , where
QR = c
a = 12
b = 23
cos(120) = cos (P) 
c = sq rt [ a^2+b^2﹣2*a*b*cos(P) ]
QR = sq rt [ 12^2 + 23^2 - 2* 12*23*cos(120) ]
QR = sq rt [ 144 + 529 - 552 * (-0.5 0 ]
QR = sq rt [ 673 + 276 ]
QR = sq rt [ 949 ] 
QR = 30.8058
rounded to nearest 10th is
QR = 30.8  :)
 
        
             
        
        
        
Find out how many children there are first. Come on, this is simple fractions/percents/decimals/ratios.