the height is 11.25 because 7×4=28×11.25=315
 
        
                    
             
        
        
        
Answer:
-3.5x + 3y - 3
Step-by-step explanation:
1.2x + 3y - 3 - 4.7x 
=> -3.5x + 3y - 3
Therefore, our simplified expression is -3.5x + 3y - 3
Hoped this helped.
 
        
                    
             
        
        
        
The shirts are 12.75 for 3 so we can write a ratio of 

 To get the price of the shirts, one needs to divide 

 , which will tells use what the unit price is per shirt. The price per shirt is $4.25