Answer-
The exponential model best fits the data set.
Solution-
x = input variable = number of practice throws
y = output variable =  number of free throws
Using Excel, Linear, Quadratic and Exponential regression model were generated.
The best fit equation and co-efficient of determination R² are as follows,
Linear Regression  
Quadratic Regression
Exponential Regression
The value of co-efficient of determination R² ranges from 0 to 1, the more closer its value to 1 the better the regression model is.
Now,
Therefore, the Exponential Regression model must be followed.
 
        
             
        
        
        
Answer:
 when we have two dice, the odds are not as simple. For example, there's only one way to roll a two (snake eyes), but there's a lot of ways to roll a seven (1+6, 2+5, 3+4).
Step-by-step explanation:
got em
 
        
                    
             
        
        
        
So, what is the case in which he uses the least coins? can he use 1 coin? no, there isn't a 35 cent coin. can he use 2 coins? yes! he can use 25+10 cent coins!
now, the largest number of coins means the coins of the smallest value: so using only 5 cent coins. How many would this be? 
we have to divide: 
35/5=7
so we would use 7 coins. 
And the difference is 5: 7-2 is 5.