Answer:
 The introductory APR is the interest rate that the loan or credit card starts out at..(usually a promotional tool)and the standard rate is what the rate normally is.. the set rate
Explanation:
 
        
                    
             
        
        
        
Answer:
The eccentricity, denoted by e, is defined as that fraction of an ellipse size which causes the focus to move away from the center. When an ellipse has an eccentricity of zero, this means that the focus and the center are in one same place. Thus the eccentricity of the secondary focus located at the sun is zero when located at the sun. Thus with an eccentricity of zero, the focus and center will be at same place therefore making the shape of the orbit to be a perfect circle.
Explanation:
 
        
             
        
        
        
Answer:
4.88 years
other methods should be used because payback method does not account for the time value of money
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Answer: D. $20
Explanation:
Total cost to produce 50 cookies = Total cost to produce 100 cookies - Marginal cost to produce 50 cookies
Total cost to produce 100 cookies is:
= Average total cost * number of cookies
= 0.25 * 100
= $25
Marginal cost to produce 50 cookies is:
= Constant marginal cost * number of cookies 
= 0.10 * 5
= $5.00
Total cost to produce 50 cookies = 25 - 5
= $20.00