Answer:
5
Step-by-step explanation:
 
        
             
        
        
        
If the total bill is $85, and you want to leave a 15% tip, then you can calculate it as follows:
85 * 15%
= 85 * 15/100
= 85 * 0.15
= 12.75
The amount that should be left as a tip is D. $12.75.
        
             
        
        
        
Answer:
The answer is A. -2/7
Step-by-step explanation:
 
        
             
        
        
        
What are the options? 
Explanation?
        
                    
             
        
        
        
A
This is because 4x18 = 72
Hope this helps