Its simply 87 + 30, which equals 117.
        
             
        
        
        
Answer:
9
Step-by-step explanation:
 
        
                    
             
        
        
        
Arranging of books is an illustration of permutation and combination
There are 24 different possible arrangements she can make
<h3>How to calculate the number of arrangement</h3>
The number of books is given as:
n = 4
Take the factorial of both sides
n! = 4!
Evaluate
n! = 4 * 3 * 2 * 1
n! = 24
Hence, there are 24 different possible arrangements she can make
Read more about permutation and combination at:
brainly.com/question/1216161
 
        
             
        
        
        
Um how am i supposed to answer
        
             
        
        
        
Answer:
22 miles
Step-by-step explanation:
time must be in hours, hence
15 minutes =  =
 =  hour
 hour
distance = 88 ×  =
 =  = 22 miles
 = 22 miles