So each 1 revolution it travels the distance around the rim of the wheele aka circumference
circumference=pi times diameter
diameter=21
circunference=pi times 21 or 21pi
so distance=number of revolutions times circunference
number of revolutions=3 
subsitute
distance=3 times 21pi
distance=63pi
answer is 63pi
or aprox pi to 3.14 and do 63 times 3.14=197.82
aprox 197.82 inches
        
             
        
        
        
Answer:
me niether
Step-by-step explanation:
lol
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
not good at explaining i just think its D
 
        
                    
             
        
        
        
To solve this problem you must apply the proccedure shown below:
 1- You must rewrite each value shown in the picture attached, in decimal form, as following:
 6π-6=12.84
 π^3=31
 √99=9.94
 2- Now, you can order the values from least to greatest:
 √99
 6π-6
 π^3
 The answer is:
 √99
 6π-6
 π^3
 
 
        
                    
             
        
        
        
I will be using the language C++. Given the problem specification, there are an large variety of solving the problem, ranging from simple addition, to more complicated bit testing and selection. But since the problem isn't exactly high performance or practical, I'll use simple addition. For a recursive function, you need to create a condition that will prevent further recursion, I'll use the condition of multiplying by 0. Also, you need to define what your recursion is. 
To wit, consider the following math expression 
 f(m,k) = 0 if m = 0, otherwise f(m-1,k) + k 
 If you calculate f(0,k), you'll get 0 which is exactly what 0 * k is. 
 If you calculate f(1,k), you'll get 0 + k, which is exactly what 1 * k is.   
 So here's the function   
 int product(int m, int k) 
 { 
  if (m == 0) return 0; 
  return product(m-1,k) + k;  
}