The best thing to do is to find 10%, and you can do this by dividing $270 by 10, and therefore, $27 is equal to 10%.
To find 40%, you've got to multiply $27 by 4, and this gives you $108.
Therefore, gabriel saved $108 last month :)
        
                    
             
        
        
        
Answer:
y=5-5/4x
Step-by-step explanation:
slope-intercept form:   y=mx+b (m= slope, b= y-intercept)
5x + 4y = 20
4y=20-5x
simplify
y=5-5/4x
 
        
             
        
        
        
Answer:try and use a calculator
Step-by-step explanation:
 
        
                    
             
        
        
        
D is the answer i think it is at least
        
             
        
        
        
The greatest common factor of 10 and 20 is 10.