ANSWER

EXPLANATION
We want to find the radius and diameter of a circle given that its circumference is 84.823 yards.
The circumference of a circle is given as:

where r = radius
Therefore, the radius is:

Diameter is twice the radius.
Therefore, the diameter is:
 
 
        
             
        
        
        
Answer:
$1.95 
Step-by-step explanation:
 
        
             
        
        
        
Answer: (c)
Step-by-step explanation:
Given
Function  is
 is 
Also,  is the transformation of
 is the transformation of 
From the graph, it is clear that  passes through the point
 passes through the point 
Now check the option which satisfies the condition
option (c) seems to obey it 

Therefore, option (c) is correct.
 
        
             
        
        
        
The problem is a irrational number