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Answer:
10 less than 87 is 77. you subtract 10 from 87 which gives you 77
Step-by-step explanation:
 
                                
             
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3a-2 is equivalent to (3a)-2
Hope my answer helped:)
        
                    
             
        
        
        
        
Answer:
25,69% in 2019
Step-by-step explanation:
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This means you should do 240*3/8 which is 90. so 90 times 240=21600
the answer is 216000km^2