Answer:
The correct answer of the given question above would be the first option. It is important to know a currency's exchange rate when you are planning for the expenses for an overseas trip. When you are overseas, the money you will be using should be exchanged for the currency depending on where you travel and currency changes from time to time and differs from country to country so it is necessary to know the rate beforehand. Hope this answer helps.
 
        
             
        
        
        
Answer:
63a+54b
Explanation:
9×7a = 63a then you multiply 9×6b=54b after you get your answers you put the equation together it will be 63a+54b
 
        
             
        
        
        
Answer:
That would be the US I think.
Explanation:
 
        
             
        
        
        
A is the correct answer 
I did this in class last week