Answer:
9 hours
Step-by-step explanation:
 
        
                    
             
        
        
        
The step function is characteristic of the floor or ceiling functions, which map a real number to an integer.  There's clearly a factor of 2, indicated by two units of y for every one unit of x.
The open and filled circles indicate, for example, f(1)=2, f(1.01)=4.   That means we're rounding up, so we're using the ceiling function.

Answer: second choice
 
        
             
        
        
        
Answer:
he's right its D
Step-by-step explanation:
 
        
             
        
        
        
Answer:
0 because we can't have Repetitious x in function.
 
        
             
        
        
        
Answer:
3 shirts, 6 shorts
Step-by-step explanation:
A total of $264 is spent during shopping on shirts and shorts
Each shirt costs $24
Each shorts cost $32
Therefore the quantity of shirts and shorts bought can be calculated as follows
24× 3= 72
32×6= 192
192+72= 264
Hence 3 shirts and 6 shorts were bought