Answer:
1. children you only use 2 fingers
2. adult its 30 chest compression to 2 breaths, children its 15 to 2 
3.you have to use a different size mask for a child 
 
        
                    
             
        
        
        
•Principles of first aid•
•Call for help 
•Calmly take charge
•Check the scene and the casualty 
•Carefully apply FIRST AID. 
Hope this helps! Have a great day and good luck! ;)
        
             
        
        
        
Answer:
True because making good exercise without a gym is very hard
 
        
             
        
        
        
B.) 25%................................................................................................................................
        
             
        
        
        
Answer:
concept of development is a set of activities that are carried out early in the system engineering life cycle to collect and prioritize operational needs and challenges , develop alternative concept to meet the needs, select preferred one as the basis for subsequent system or capability development.