The answer would be D. an interval isnt a certain number but it is a time something happens over and over again 
        
                    
             
        
        
        
There are

ways of pairing up any 2 members from the pool of  contestants. Note that
 contestants. Note that

so that

 
        
             
        
        
        
Answer:
<u>The area of the circular garden is 28.3 square feet</u>
Step-by-step explanation:
Let's recall that the area of a circle is π * r², therefore if the diameter of the circular garden is 6 feet, the area is:
Diameter = 6 feet ⇒ radius = (6/2) = 3 feet
Area of the circular garden = π * 3²
Area of the circular garden = 3.1416 * 9
Area of the circular garden = 28.2744
<u>Area of the circular garden = 28.3 square feet</u>