The answer is 240 :3
60+60= 120
120+60 = 180 
and 60 more would be 240 
60 fours would be 240
3  60's  would be 180.  So your answer is 240
        
                    
             
        
        
        
In USA the average I.Q. is 98 while the top one average I.Q. country is Hong Kong. 
But the I.Q. distribution is given by a polinomial graph, few people with extremely low I.Q. 40~70, a lot between 70~100, some between 100~120, few between 120~140 and extremely low 140+
 
        
                    
             
        
        
        
Ais the answer I’m pretty sure
        
             
        
        
        
It should be B or D. B because in 2 hours you make $10.50 and then add 15 minutes and you get B. It could also be D because that's doing $5.25 an hour which is true it's just deleting the extra 45 minutes so it can be either B or D.
        
             
        
        
        
Let S be the number of Brand S snowboards sold.
Let B be the number of Brand B snowboards sold.
309S + 489B = 4299
S + B = 11
S = 6 snowboards sold
B = 5 snowboards sold