Answer:
B 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
(2 a - 5) (2 a + 5)
Step-by-step explanation:
Factor the following:
4 a^2 - 25
4 a^2 - 25 = (2 a)^2 - 5^2:
(2 a)^2 - 5^2
Factor the difference of two squares. (2 a)^2 - 5^2 = (2 a - 5) (2 a + 5):
Answer: (2 a - 5) (2 a + 5)
 
        
             
        
        
        
It’s -0.5 because it an integer has to be whole number hope this helps :)
        
             
        
        
        
First hit  it travels 48 ft
Second hit it travels  24 + 24 ft
third hit  12 + 12
4th hit  6 + 6 ft
Total =  48 + 48 + 24 + 12 =  132 ft Answer
        
             
        
        
        
Please explain more your question