Answer:
I think the answer would just be 2, I'm not for sure on this one
 
        
             
        
        
        
Answer:0.333
Step-by-step explanation:
 
        
                    
             
        
        
        
40mph for Car B I think. 45mph for Car A. 45(mph) times 4(h) is 180(distance) and 40 times 4.5 is also 180. Sorry if I'm wrong.
 
        
             
        
        
        
Answer:
sin=0.945
cos=0.325
tan=2.902
Step-by-step explanation: 
In a scientific calculator you simply enter "240°" then press cos/sin/tan after the degrees.