In economics, the invisible hand<span> is a </span>metaphor used<span> by </span>Adam Smith<span> to describe ... Smith </span>may<span> have come up with the two meanings of the phrase from Richard Cantillon ... In this </span>work<span>, however, the idea of the </span>market<span> is not discussed, and the word ... In alternative models, </span>forces<span> which were nascent during Smith's life, such as ... and ....</span>
        
             
        
        
        
Answer:
The IRR (in %) for Project A is 31%.
Explanation:
Let IRR be x%
At IRR, present value of inflows = present value of outflows.  
218917 = 25700/1.0x + 53000/1.0x^2 + 58000/1.0x^3 + 420,000/1.0x^4
solving for x, we find:
x = 31%
Therefore, The IRR (in %) for Project A is 31%.
 
        
             
        
        
        
NOTE: Your question isn't clear, Johnson. Would you mind checking it and writing it in a way you can be better helped?
Meanwhile, I hope these explanation below helps.
Answer and Explanation:
Two goods are said to be complementary goods if an increase in the price of a particular one leads to a commensurate decrease in the demand that buyers placed for the other one.
A good is said to be a normal good if the reason for an increase in demand is due to an increase in the income of the buyers.
A good is said to be an inferior good if there is a decrease in demand even though the buyers have experienced increase in their income.
 
        
             
        
        
        
-Whenever countries have different opportunity costs in production they can benefit from specialization and trade.
-Benefits of specialization include greater economic efficiency, consumer benefits, and opportunities for growth for competitive sectors.
        
             
        
        
        
This is a case of Food safety fraud by Penanut corporation of America and the culprits where sentenced to prison in Albany,Georgia
Explanation:
- In the above mentioned case the managers (c)who shipped the product knowing that it was contaminated where also punished .
- The managers where punished for their role in shipping the salmonella -positive peanut product,for falsifying the microbiological results.
- The evidence of the trial reflected that tainted food shipping  led to a salmonella outbreak in 2009 with more than 700 reported cases of salmonella poisoning in 46 states.