Answer:
ROI (Return on Investment) measures the gain or loss generated on an investment relative to the amount of money invested.
Explanation:
ROI = (Net Profit / Cost of Investment) x 100
Example: Investment = $100 Net Profit: $30
ROI : (30/100) x 100 =  30%
 
        
             
        
        
        
Answer: Option (A) is correct.
Explanation:
It was given that consumer prefers Adidas to puma brand soccer cleats but he buys puma brand soccer cleats. This is only because of the price theory and rational consumer choice. We know that a rational consumer will choose a product with a lower price. Both puma and Adidas brand soccer cleats are substitutes, thus, if the price of puma cleats is lower than the Adidas cleats then he should prefer puma brand soccer cleats.
 
 
        
             
        
        
        
Answer:
a. make a list of you job preferences and skills. 
 
        
             
        
        
        
Answer: A
Explanation:
A complementary good is a product that is used together with another product. Without its complement, such a good will have little value. When there is increase in the price of a particular product, the demand of its complement reduces because consumers may not be able to use the complement on its own. 
Complements have negative cross elasticity of demand i.e there is increase in the demand for a product when the price of its complement reduces. If bicycles and gasoline are complements, an increase in tax on gasoline will have a negative effect on the demand for bicycle. Due to the price increase of gasoline, less people will demand for bicycle. The initial change that will occur as a result of this is that as there is a price increase for gasoline, there will be a leftward shift in the demand for bicycle. This implies that less bicycle will be demanded for.
 
        
             
        
        
        
Answer:
<em><u>P (x)   = 80x - 2x^2 - 3</u></em>
Explanation:
The Profit function is the revenue minus the cost.
Revenue = Price x Quantity =  X.px = x(88-2x) = 88x - 2x^2
Therefore the profit function P (x):  
 P (x)  =  88x - 2x^2 - (8x+3) 
 <em><u>P (x)   = 80x - 2x^2 - 3</u></em>
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To maximise profit we use the 1st order condition: dP(x)/dq = 0 
Therefore,  80 - 4x = 0 
4x = 80 
x = 20
So 20 leashes maximises profit.
 P(x) = 80(20) - 2(20)^2 - 3
<em><u> P = $803  </u></em>
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The price to charge would be:
<u><em>p (x) = 88 - 2(20) = $48</em></u>
<u><em>The best reason would be that the price is a bit expensive for a leash so most people would not buy it.</em></u>