Answer: 14.59%
Explanation:
The Internal Rate of Return(IRR) is the discount rate that brings the Net Present Value to zero. It is used to decide the viability of projects. The project is generally considered viable if the Cost of capital is less than the IRR. 
You can use Excel to calculate the IRR;
= IRR(-15,800,6,500,7,800,6,300)
From the picture attached you can see that the IRR is 14.59%
 
        
             
        
        
        
Yes definitely depends on that
        
             
        
        
        
Taiwan is an economic success. Since 1992, Taiwan’s GDP growth has averaged 4.5 percent. This raised real per capita income from $9,116 in 1992 to $19,762 in 2012, with the result that today Taiwan is the 28th wealthiest country globally, and 6th richest country in Asia. And along the way Taiwan has transformed itself from a dictatorship into a vibrant democracy.[1]
 
        
                    
             
        
        
        
Answer:  6.29%
Explanation:
Required return = Risk free rate + beta ( expected return - risk free rate)
Beta.

Required return = 3.63% + 0.493(9.03% - 3.63%)
= 6.29%
 
        
             
        
        
        
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