Answer:
Step-by-step explanation:
A straight line adds up to 180 degrees, therefore 3x+6x = 180
9x = 180
x = 20
 
        
             
        
        
        
3. A
2. C
Idk if you should repost this with a better pic though
        
                    
             
        
        
        
Step-by-step explanation:
- V= L×W×H 
- you only need to know one side to figure out the 
- volume of a cube 
- volume is in 3Dimensions
- Multiple the sides in any order
- which side you call length, width, or height doesn't matter
that's how you find the answer. 
does that help?
 
        
                    
             
        
        
        
It should be 117.5 because in a kite, the angles all add up to 360, and since the remaining unknown angles are the same, you just subtract 38+87 from 360 and divide by 2