ummmmmm you dont need the explanation and I'd rather not type but trust me its d, good luck!
 
        
                    
             
        
        
        
Answer:
5 minutes 
Step-by-step explanation:
To get the response to this question, it would be required to convert both times to seconds alone.
For the first, the time It takes to flash is 1 minute 15 seconds which is same as 75 seconds 
For the second, it takes 1 minute 40 seconds which is same as 100 seconds.
Now to get the time they would flash together, we need to know their lowest common multiples. The values involved are 75 and 100. Thus, the lowest common multiple of both is 300.
This is equivalent to 300 seconds which is 5 minutes time 
 
        
                    
             
        
        
        
Answer:
happy holidays!!!!!!!! love you u are strong and a true buddy
Step-by-step explanation:
 
        
             
        
        
        
Answer:
8
Step-by-step explanation:
b ÷ 9 when b = 72
b ÷ 9 <== substitute 72 for b, and solve
72 ÷ 9 = 8
Hope this helps!