The answer is 60. You can find this out by finding the least common multiple of 10 and 12, which is 60 because 10x6=60 and 12x5=60. Hope this helps :)
        
             
        
        
        
Answer:15
Step-by-step explanation:
Given
Craftsman sell 10 Jewelry set for $500 each
For each additional set he will decrease the price by $ 25
Suppose he sells n set over 10 set
Earning
Earning 

differentiate to get the maximum value 

Equate  to get maximum value
 to get maximum value 



Thus must sell 5 extra set to maximize its earnings.
 
        
             
        
        
        
Seven because 1+2 is 3 and 3+1 is 4 so in total is seven
        
             
        
        
        
        
Answer:
4 * (3 + 5)
4 * 8
<u>32</u>
Step-by-step explanation: