I would first add 5 and 2 together, then multiply that by 3. Finally you would subtract the 1. After solving for what is inside the parentheses you would multiply it by 2 for your final answer. 
2•(3(5+2)-1)
2•(3(7)-1)
2•(21-1)
2•(20)
40
        
             
        
        
        
Answer:
g(x) has a greater maximum value than f(x).
Step-by-step explanation:
I just took the test!
 
        
             
        
        
        
You should first find out what lines are what,
Like for example, If you had 5 - 10 - 15 as the Y Lines and the bar was between 5 and 10 then your best bet would be to estimate what the middle of 5 and 10 is which would be 7 or 8.