$27.00x.15=4.05
27.00+4.05=$31.05
$31.05/3= 10.35
Each person will pay $10.35
        
                    
             
        
        
        
Answer:
B
Step-by-step explanation:
It’s communicative property because it you can multiply in any order.
 
        
             
        
        
        
The teacher has to take 10 questions at a time from 12 questions.
Total ways = 12C10 = 12!/(10!)(12-10)! = 12 x 11 / 2 = 66
The teacher can make 66 different exams