In order for mutually beneficial trade to occur between two otherwise isolated nations, each nation must be able to produce at least one good relatively cheaper than the other.
<h3>What does comparative advantage mean?</h3>
A country has comparative advantage in production if it produces at a lower opportunity cost when compared to other countries. A country should specialise in the production of goods for which it has a comparative advantage. This is when trade can be mutually beneficial .
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Answer and Explanation:
The Journal entries are shown below:-
1. Salary Expense $1,500
           To Salary Payable $1,500
(Being salary expense is recorded)
Here we debited the salary expenses as it increased the expenses and we credited the salary payable as  it also increased the liabilities 
2. Salary Expense Dr, $2,100
    Salary Payable Dr, $1,500
               To Cash $3,600
(Being cash paid is recorded)
Here we debited the salary expenses and salary payable as it increased the expenses and decreased the liabilities  and we credited cash as it reduced the assets 
 
        
             
        
        
        
Answer:
129 bracelets and 59 necklaces.
Explanation:
Kings departments store wants to maximize profit by making a combination of its two products necklaces and bracelets. The King store should use a strategy so that it can generate maximum profit with its available rubies, diamonds and emeralds.  
$250a + $500b = Maximum Profit
For rubies : 2a + 5b = 625
For Diamonds : 3a + 7b = 800
For Emeralds: 4a + 3b = 700
Solving the equation we get maximum profit value of $61,750.The King departments stores should make 129 bracelets and 59 necklaces which will bring maximum profit to the store.
 
        
             
        
        
        
The professor has constructed a hypothesis. This answer
takes from the first statement mentioning how the professor predicts a
relationship between two variables. A hypothesis can be used to make a
statement that predicts a relationship or solve a certain phenomenon. It must
be based off by facts and solid information.