Coooooooooooooooooooooool
        
                    
             
        
        
        
Answer:
5x+7
Step-by-step explanation:
Subtract like terms 
(8x+9)-(3x+2)
8x-3x=5x
9-2=7
5x+7 should be your answer I believe
 
        
             
        
        
        
Take the amount of rows in the auditorium, 15, and multiply that by the number of new seats in each row, 3. You get 45. Now multiply the number of new seats, 45, by the cost of each seat, $74. You get $3,330.