Answer:
6 men finish a piece of work in 8 days
1 men finish a piece of work in 8*6 days
4men will finish a piece of work in 48/4
days 
..
which is equal to 12 days
 
        
                    
             
        
        
        
Answer: 322
Step-by-step explanation:
23 students × 14 homework 
=322 problems 
The teacher will have to grade 322 problems 
 
        
             
        
        
        
So it would be x12 to the 2nd power, kinda hard to explain but i really hope this helped
        
                    
             
        
        
        
Answer:
P= 3/13
Step-by-step explanation:
R=7
B=7
Total=14
P(one red marble)=7/14=1/2
P(another red marble no replacement)=6/13
1/2 times 6/13=6/26=3/13