Answer:2400
Step-by-step explanation:
Just divide 12000 by 5
 
        
             
        
        
        
Answer:
X-6
Step-by-step explanation:
Represent the unknown number with a variable then introduce the minus sign
 
        
             
        
        
        
The problem here takes a brilliant mind to answer this. This problem can easily be answered using programming because we can not then and there push all the possibilities using paper and pen.
The answer is 3816547290. 
Trying all the possibilities starting form 1000000080 (we are sure that the last number should be 0). Then traversing that number until 9999999990. Each traverse, check the number if its divisible to n, so on and so forth.
        
             
        
        
        
2 pounds = $3.96
4 pounds = $3.96 x 2
4 pounds = $7.92
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Answer: $7.92
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