M>5=m>4
m>5 and m>7 are on line then m>5+m>7=180
by substituting 
m>4+37=180
m>4=143
m>2=m>7=37
m>4=m>8
m<3+m>5=180
        
             
        
        
        
The right answer is 
D.)
Hope this helps :)
        
                    
             
        
        
        
You can convert everything in minutes once you've solved it you turn it back to hours and minutes....5hrs and 8min= 308min....3hrs 12min=192min....308-192=116.....116 is 1hr and 56min
        
             
        
        
        
Answer:
47
Step-by-step explanation:
should be the correct answer