Answer:
B
Step-by-step explanation:
It is a 379 page book so the answer is 379. That leaves B and D. It states she has already read 54 so that eliminates D leaving B. Now let's say we want more proof. It states 28 pages an hour. That means 28h. D doesn't have this either. 
 
        
                    
             
        
        
        
The first thing you need to do is make your denominator same so try doing that and I'll finish it off for you
        
             
        
        
        
Answer:
a i think
Step-by-step explanation:
im not good at math
 
        
                    
             
        
        
        
84 kilometers ... 1 hour
7 kilometers ... x hours = ?
If you would like to know how long does the pigeon take to fly 7 kilometers, you can calculate this using the following steps:
84 * x = 1 * 7
84 * x = 7      /84
x = 7/84
x = 1/12 hour
Result: A pigeon can fly 7 kilometers in 1/12 hour.
        
                    
             
        
        
        
Answer:
The answer is C and D.
Step-by-step explanation:
(-4)^1/2 = undefined
(-16)^1/4 = undefined
(-32)^1/5 = -2
(-8)^1/3 = -2