Answer:
Step-by-step explanation:
both sides are the same length so 20+6x+3=18+7x+2
all you have to do is get the variables and non-variables on opposite sides of the equation so 3=x
 
        
             
        
        
        
Answer:
7 . time os on axis X. total vector lenght is 7. 
 
        
             
        
        
        
Answer:
2 1/2   (2.5)
Step-by-step explanation:
Multiply all the numbers then divide by 1/2
 
        
             
        
        
        
Hi! They are- A,C,E, and F sorry if I’m wrong! Have a great day! :)