I'm not sure what the ray exactly is but some examples of ray names are ray RT or ray TR. You basically switch the letters.
        
             
        
        
        
The percent markup would be 40%. 10+40%=14
Hope this helps!
Can u plz mark me as brainliest? I really need it!
        
                    
             
        
        
        
82,300 because you need to round it to the 100 place
        
             
        
        
        
Question 7: Answer J (7/8 - 1/2 = 3/8)
        
             
        
        
        
C. 1 solution hope it helps