Answer:
42x^2
Step-by-step explanation:

 
        
             
        
        
        
To find f(2), you just need to replace x for 2.
1/3•4^(2)
The answer is 16/3 or 5.3333...
        
                    
             
        
        
        
Answer:  [A]:  "library card".
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Explanation:   One would need a valid, government-issued photo ID card (i.e. that has not expires). 
Although SOME library cards include one's picture, library cards do not constitute "valid ID's" because they are not "government-issued" and would, theoretically, be easy to be made fraudulently (e.g. not have security-issued seals and features).  
Even "school ID's"; or "college ID cards"; even if "current" (e.g. currently enrolled" with a photo ID) would not be considered "official" and would only be considered "secondary ID".
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Answer:
89,000 I think
Step-by-step explanation:
just subtract 125,000 by 36,000
although Its a guess
 
        
                    
             
        
        
        
The answer is 20000000+600000+30000+7000+100+30+9