Answer:
8.4cm
Step-by-step explanation:
In a circle, d = 2r, so d = 2 * 4.2cm = 8.4cm
 
        
             
        
        
        
Answer:2/10 20%
Step-by-step explanation:
 
        
             
        
        
        
Answer:JT=15
Step-by-step explanation:
 
        
             
        
        
        
Answer:
3/2(x+y)
Step-by-step explanation:
The cost of 2 DVD is x+y
Divide by 2 to get the cost of one DVD
(x+y) /2
Multiply by 3 to get the cost of 3
3/2(x+y)