Answer:
2. 8:45am to 5:15pm 
Step-by-step explanation:
Looking at the table of John's times, he arrived at 8:42am and left at 5:14pm.  If you are rounding to the nearest quarter hour, or 15 minutes, you time would need to be at the hour, 15 minutes after, 30 minutes after or 45 minutes after. Given those options, the closest times would be 8:45am and 5:15pm. 
 
        
             
        
        
        
Answer:
the first one is 5. 5 and second is 5 
Step-by-step explanation:
sorry i couldnt do the others
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
The hypotenuses are equal in length of both triangles.





 
        
                    
             
        
        
        
45degrees because angles can not be negative