Answer:
25 feet
Step-by-step explanation:
Basically that non-regulation tennis court is a rectangle.  You want to know the length of the diagonal.  If you draw it on paper, you'll see that this then become 2 triangles... of which you have 2 sides, and are seeking the hypotenuse.  So....
H² = A² + B²
H² = 20² + 15² = 400 + 225 = 625
H = 25 feet.
 
        
                    
             
        
        
        
Answer: 
1.97-20= -18.03
20-1.97= 18.03
Step-by-step explanation:subtract the numbers from each other.
 
        
             
        
        
        
Elga’s age is 40 and Alvin’s age is 54
        
                    
             
        
        
        
A reasonable estimate is an educated guess made by an observer based on that person's current knowledge and following observations. For example, If Garth knew that he was 1.2 meters tall, and he observed that the door was approximately twice his own height, Garth could then make the reasonable estimate that the door is about 2.4 meters tall.
        
             
        
        
        
Answer:
About  297.50$
becuase since i actually have an xbox with that same discount i know the answer