Answer:
 
Step-by-step explanation:
we know that
The simple interest formula is equal to
 
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest  
t is Number of Time Periods
in this problem we have
 
substitute in the formula above
 
 
 
 
        
                    
             
        
        
        
The slope is 2/3, and the y-intercept is 4. In slope intercept form, the equation is y=2/3x+4
 
        
             
        
        
        

Round to whichever place is needed
 
        
                    
             
        
        
        
Answer:
3x^10 + x^6 + 2x^2 - 4x + 8
Step-by-step explanation:
In descending order by powers of x:  3x^10 + x^6 + 2x^2 - 4x + 8