Answer: 11, 30
Step-by-step explanation:
Given
There were a total of 41 national battlefields and national memorials
Suppose there are 
 national battlefields
So, national memorials are 
 
The sum of the two must be 41

So, there are 11 national battlefields and 
 national memorials.
 
        
             
        
        
        
Answer:
20/3
Step-by-step explanation:
Every nth term takes the form of  a + n*d, where a is the first  term.
So 7th term = (54 = a + 7d), 13th term = (94 = a + 13d).
equate them both:
94 - 13d = 54 - 7d
40 = 6d
d = 40/6
 
        
             
        
        
        
Answer:
5
Step-by-step explanation:





= 5
 
        
             
        
        
        
Answer:
Step-by-step explanation:
hope this helps