Answer:
1a: f(-2) means substituting -2 for x
1b: 65
I don't know the second one 
 
        
             
        
        
        
8,000+100+30+6 
 first you do 6*1356 which is 8136 then just write the numbers as the place value
        
             
        
        
        
The answer is:  " 95 km " .
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Explanation:
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                                   ("airport")
                                           •     {Step 1):       " 25 km east "               •<span>  
                                           </span>│===============================>  <span>│
                           </span>•  {Step 2):       " 40 km west ["of that point"] " ;        •                                             │<==========================================│<span>  
             
                          </span>•  {Step 3:  [back to airport] = " (40 km − 25 km) " ;
                                            • ("airport").
                         │=======>│
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<u> Note</u>:  To find "total distance traveled: 
" 40 km +</span> (40 km) + (40 km <span>− 25 km) " ; 
= </span>" 40 km + (40 km) + (15 km) " ;
= " 40 km + 40 km + (15 km) " ;
= 80 km + 15 km  ;   
=  95 km .
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<span>
The answer is:  " 95 km <span>" .
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Answer:
D
Step-by-step explanation: