One irrational number is π, also known as pi. A rational number is one that can be written as a ratio of two integers (whole numbers). Pi goes on forever, so it can't be written as a ratio. Therefore, π is irrational.
        
                    
             
        
        
        
Answer:
The answer is t=4 s
Step-by-step explanation:
 
        
                    
             
        
        
        
Y=x+4
x=0 y=4
x=1 y=5
x=2 y=6
x=3 y=7
plot the points at
(0,4) (1,5) (2,6) and (3,7)
        
             
        
        
        
The answer is whole 
Hope this helps