Answer:
18
Step-by-step explanation:
I did that in my head could be wrong
 
        
             
        
        
        
Simple pythagorus theorem with the equation a^2=b^2+c^2
To find AC, (2^2)+(3^2)=4+9=13
AC=the square root of 13
        
             
        
        
        
Answer:
A
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
5.5hr
Step-by-step explanation:
Distance=550Km
Speed=100Km/hr
Speed=(Distance/Time)
Time=(Distance/Speed)
Time=550/100=5.5hr